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OH, USA
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Posted: 8/11/2022 7:33:06 PM EDT
[#1]
So I found the 150 grain subs using cfe blk to be too position sensitive. Too much of a risk in my book. I managed to look over some manuals and found something that could work. IMR 4198. Came from Sierra's most recent one for a 16" barrel. Link below. They listed a sub at 11.7 grains of IMR 4198. Called the techs there and they think the AR won't cycle. So I made a ladder and here are the results. TTLR, I found one that worked for me.
Sierra Listings AR-15 sbr using daniel defense 10.5" barrel, pistol length gas system IMR 4198, WSR primer, Honrady 150 grain FMJ, OAL 2.140 Note the grains are an average because the powder is a stick powder. SUCKS feeding thru a powder drop. 11.7 grains (did 2 rounds) AVG 986 957, 1004, 971, 1012 AVG 957 913, 993, 930, 975, 972 NOTE: With a suppressor was getting most consistant knock back. Otherwise no feed reliably 12.2 grains AVG 1103 1084, 1099, 1043, 1158, 1137 12.7 grains AVG 1154 1114, 1190, 1156 13.2 grains AVG 1224 1188, 1223, 1226, 1195, 1242, 1268 NOTE: Most were giving a super sonic crack. Temp was 80 with humidity of 55/60 Did call sierra after the testing and they were surprised at the results. Hope someone might try out and confirm their results. Cheap plinkers was the idea of this project. |
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Posted: 8/18/2022 12:37:33 AM EDT
[Last Edit: Eight_Ring]
[#2]
I bought 1K 300 BLK cases, converted from Lake City.
The brass was not annealed prior to being formed. Does it make any sense to anneal them before loading for the first time, or should I just wait until they are once-fired? |
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Posted: 8/18/2022 1:54:11 AM EDT
[#3]
I always anneal before forming.
Don't think it will matter now that cases are formed. To be sure, try several cases to ensure they chamber and eject normally and you don't have to mortar any cases out. If you do, then anneal and resize them properly. |
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Posted: 8/19/2022 9:15:10 AM EDT
[#4]
I got a bunch of converted new Lake City.
At least I ASSUME it was converted. I didn’t anneal anything. Four firings, an no issues. |
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MT, USA
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Posted: 8/19/2022 3:28:49 PM EDT
[Last Edit: spyderboy03]
[#5]
Edited to try to make easier to follow.
Opinions please. Hodgdon, Hornady, and Lyman all show starting loads higher than I started, and a lot of people settle between 18.5 and 19.5gr of Lil'Gun with this bullet. I loaded up a ladder of 125gr TNT's over Lil'Gun starting at 17.1gr going up in .3gr increments to 18.9. Loads used CCI #400's and bullets were seated to 2.075 (I've seen a few reports of good accuracy at this length). I just built an upper using an 8.3 Ballistic Advantage Hanson barrel and am using an Aero Precision BCG. I shot the 17.1, 17.4, 17.7, and 18gr loads. No cratering, but all seemed slightly flat to me and there appears to be some ejector swipe. The 4 first loads look the same to me, as do the 4 rounds of Ammo Inc. 110gr VMAX I was able to recover. ETA: Seeing closeup pics, I am not seeing the flattening like I thought I did before... I stopped testing partially because 17.1 gave me a pretty decent group at 50 yards with a red dot, as well as what I thought might be pressure signs. The day was also getting long and I was getting antsy. I have pushed .223 loads hotter with more signs, but 300 is new to me and I didn't feel like doing anything dumb. All groups were 5 shots, but I didn't recover all the brass. I was shooting in National Forest and the amount of trash was insane. We spent the first half an hour trying to pickup brass and trash. L to R - 17.1 - 18gr  Factory Ammo Inc. brass along with a few rounds I QC'd out for groups  Overall targets: Top target - top left is 17.1, top right is 17.4, middle is 17.7, and bottom left is 18. Bottom target - middle is Ammo Inc  Measurement of the 17.1gr group. I intend to load some more of these and take the chrono out to test velocity. 
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Posted: 8/19/2022 3:39:36 PM EDT
[#6]
You need to stop using those THIN CCI 400’s for any load that might be even remotely hot.
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Posted: 8/19/2022 3:58:13 PM EDT
[#7]
Any load I expect any accuracy out of has brass of all the same headstamp.
In 300 blk I found a light crimp with Lee FCD to be beneficial. Hard to read your post. |
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Posted: 8/19/2022 4:04:09 PM EDT
[Last Edit: dryflash3]
[#8]
Quote HistoryOriginally Posted By spyderboy03: Opinions please. I loaded up a ladder of 125gr TNT's over Lil'Gun starting at 17.1gr going up in .3gr increments to 18.9. I just built an upper using an 8.3 Ballistic Advantage Hanson barrel and am using an Aero Precision BCG. Loads used CCI #400's and bullets were seated to 2.075 (I've seen a few reports of good accuracy at this length). I shot the 17.1, 17.4, 17.7, and 18gr loads. No cratering, but all seemed slightly flat to me and there appears to be some ejector swipe. Hodgdon, Hornady, and Lyman all show starting loads higher than I started, and a lot of people settle between 18.5 and 19.5gr of Lil'Gun with this bullet. The 4 first loads look the same to me, as do the 4 rounds of Ammo Inc. 110gr VMAX I was able to recover. I stopped testing partially because 17.1 gave me a pretty decent group at 50 yards with a red dot, as well as what I thought might be pressure signs. The day was also getting long and I was getting antsy. I have pushed .223 loads hotter with more signs, but 300 is new to me and I didn't feel like doing anything dumb. All groups were 5 shots, but I didn't recover all the brass. I was shooting in National Forest and the amount of trash was insane. We spent the first half an hour trying to pickup brass and trash. ETA: Seeing closeup pics, I am not seeing the flattening like I thought I did before... L to R - 17.1 - 18gr https://i.imgur.com/lBIscOe.jpg Factory Ammo Inc. brass along with a few rounds I QC'd out for groups https://i.imgur.com/oe9XRqz.jpg Overall targets: Top target - top left is 17.1, top right is 17.4, middle is 17.7, and bottom left is 18. Bottom target - middle is Ammo Inc https://i.imgur.com/K49lx1C.jpg Measurement of the 17.1gr group. I intend to load some more of these and take the chrono out to test velocity. https://i.imgur.com/S6nFCmm.jpg I worked up to 19.5 grs Lil'Gun with the Speer 125 gr TNT. I use Wolf SRM primers and an OAL of 2.045, and a light crimp mentioned previously. |
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Posted: 8/19/2022 4:12:51 PM EDT
[Last Edit: snowbalt]
[#9]
These are from awhile back.
18.7gr of H110/W296 or Lil gun under the TNT 125 is my go to 300BLK load. I use cut down PMC brass and whatever srp I have. Light crimp with the Lee factory crimp die. No signs of pressure in my gun. I’ve increased the COAL slightly with the same accuracy results. 1947fps from the H110/W296 & 1842fps from the Lil Gun Don’t pay attention to the center targets. 8” CMMG barrel @ 50 yards w/Aimpiont T1     |
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MT, USA
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Posted: 8/19/2022 4:47:47 PM EDT
[Last Edit: spyderboy03]
[#10]
Quote HistoryOriginally Posted By W_E_G: You need to stop using those THIN CCI 400’s for any load that might be even remotely hot. Quote HistoryOriginally Posted By W_E_G: You need to stop using those THIN CCI 400’s for any load that might be even remotely hot. Everything was under or barely above starting loads from multiple sources. I do have some 450's but I do push my .223 loads a little and want to save them for those. I may try to do a local trade. Originally Posted By dryflash3: Any load I expect any accuracy out of has brass of all the same headstamp. In 300 blk I found a light crimp with Lee FCD to be beneficial. Hard to read your post. I was going to ask what made it hard to read and edit, then I saw your next post. Overall, my first concern was pressure signs and my second concern was accuracy. I'll be happy if I can come up with a safe load that will maintain 1.5-2" at 100 yards. It is plinking/training ammo. On another note, this was obviously converted brass that is fully processed and all measures right at or JUST under the minimum length (measuring 1.344 +/- .004). I resized a couple and it brought them to to 1.348 ish. I tried hitting a couple with the FCD and it wasn't noticeably catching the brass. One of the QC'd rounds squeezed the bullet a bit much so I put it off to the side. Originally Posted By dryflash3: Follow up to my last post, open Quote to see how I made your post easier to read and follow. I worked up to 19.5 grs Lil'Gun with the Speer 125 gr TNT. I use Wolf SRM primers and an OAL of 2.045, and a light crimp mentioned previously. My main concern at this point is just to make sure I am not pushing pressure from a safety perspective. I'll shoot the rest of the ladder and see what happens. Originally Posted By snowbalt: These are from awhile back. 18.7gr of H110/W296 or Lil gun under the TNT 125 is my go to 300BLK load. I use cut down PMC brass and whatever srp I have. Light crimp with the Lee factory crimp die. No signs of pressure in my gun. I’ve increased the COAL slightly with the same accuracy results. 1947fps from the H110/W296 & 1842fps from the Lil Gun Don’t pay attention to the center targets. 8” CMMG barrel @ 50 yards w/Aimpiont T1 https://live.staticflickr.com/65535/52296997251_d5bff27c32_c.jpg https://live.staticflickr.com/65535/52297490515_3aa02474ee_c.jpg https://live.staticflickr.com/65535/52296013517_30995d6493_c.jpg https://live.staticflickr.com/65535/52296997286_cc605b698d_c.jpg Thanks for the info! |
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Posted: 10/8/2022 6:47:13 PM EDT
[#11]
This still active?
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Posted: 10/8/2022 7:22:51 PM EDT
[#12]
If we keep it tagged from archive.
 Great reference thread. Hope it stays active. |
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Posted: 10/8/2022 9:19:32 PM EDT
[#13]
Quote HistoryOriginally Posted By dryflash3: You can tumble loaded rounds to delube. The powder break down myth is a myth, if you get my drift. Quoting this from 9 years ago just to make me smile. I'm in the middle of processing 2k 5.56 rds. Will tumble when done Next up, my 110gr tac x for my 300 Bo. Looks like 296 or 110 will be my powder. |
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Posted: 10/8/2022 10:36:19 PM EDT
[#14]
Quote HistoryOriginally Posted By TxLewis: This still active? It's a shame posters can't see the icon next to the green arrow, unfortunately only mods can see that icon. Let me share something with you, I just checked and threads about half way down page 5 are toggled. And all threads on pages 6, 7 ,and 8 are toggled. You will be amazed what's on the back pages. All you have to do is post in the thread, like was done in this thread, and thread returns to page 1. |
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Posted: 10/8/2022 10:39:26 PM EDT
[#15]
Quote HistoryOriginally Posted By TxLewis: Quoting this from 9 years ago just to make me smile. I'm in the middle of processing 2k 5.56 rds. Will tumble when done Next up, my 110gr tac x for my 300 Bo. Looks like 296 or 110 will be my powder. https://www.ar15.com/forums/armory/Wet-tumbling-with-SS-media-lots-of-pics-New-info-second-post-10-02-2015-/42-344832/  |
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TX, USA
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Posted: 10/9/2022 9:35:28 AM EDT
[Last Edit: Demphna2]
[#16]
Quote HistoryOriginally Posted By airgunner: Seems like the options for a good 300 sub powder are limited with no perfect or ideal choice? CFE BLK is commonly recommended (and easiest for me to find) but apparently not a quiet as other options. Lil-gun can apparently be really quiet but after reading about the issues that Obsessed detailed above, I have no interest in dealing with that no matter how quiet it is. N110 probably won't cycle (but I have read some state it will cycle in a short barrel/pistol gas barrel?). I've read a lot of good things about N120 but Vihtavuori powders are hard to find locally and I'm not crazy about the price or it being really gassy. N105   N110   I had no issues cycling N110 like I thought I would. This is with a V7 6.5" barrel. They use a proprietary shorter than pistol gas tube length with a port size of .104". And I'm using a TBAC Ultra 9. Good suppression and back pressure. N105 proved to be more challenging to get BHO. It cycled from the get go, but wouldn't lock back on empty. I'm using a maxim brace with a JP SCS XS, so there's only 2 weights (one steel and one tungsten). I tried 2 steel weights, the lightest spring, and a titanium BCG. I videoed the BCG in slow motion to see how close I was getting. Which was damn close. I was running a B.A.D lever at the time and after watching it in slow motion, I decided to take it off. Too much play going during cycling. The solution that got it running was seating the bullet further out, using one steel weight and one delrin weight, using the lightest spring (85), and using a 2A titanium BCG.  Some things to note: I did use Gordon's reloading tool to get an idea on muzzle pressure and play around with seating depth and powder charge in relation to muzzle pressure. For N105, seating the bullet further out makes the powder less efficient and slower burning which was exactly what was needed to push it over the edge. I did try CFE Blk and H4198 previously. 4198 provided good numbers and accuracy, but it was gassy and loud. CFE Blk was even worse. Unless using for supers, that powder is worthless in my opinion. The premium you pay for VV powders is definitely worth it to me considering you can get 100% burn from N105 in 5-6" of barrel. N110 is burning close to 90%, whereas CFE Blk is somewhere around 60% give or take in a short barrel. |
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Posted: 11/13/2022 11:41:18 PM EDT
[#17]
Ok guys, I'm wanting to get into 300Blackout. I want to cast my own bullets for it, any advice on molds? I'll be powder coating them, and mostly or always subsonic. when I cast the heavies, should I still gas check?
What barrel would be right for me? I dont mind playing the NFA game. Thanks... I guess I will start on pg 1. 
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Posted: 11/14/2022 3:33:24 AM EDT
[#18]
Always use a gas check if bullet was designed for one.
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Posted: 11/14/2022 11:58:38 AM EDT
[#19]
Quote HistoryOriginally Posted By 68MUDSTUD: Ok guys, I'm wanting to get into 300Blackout. I want to cast my own bullets for it, any advice on molds? I'll be powder coating them, and mostly or always subsonic. when I cast the heavies, should I still gas check? What barrel would be right for me? I dont mind playing the NFA game. Thanks... I guess I will start on pg 1. I cast a 130gr bullet for my 300 bo and load then subsonic using unique. But I am only shooting them in a bolt action. I have a 2 cavity mold, one is plain base and one is gas check design. My 300 BO rifle does not know the difference between the 2. I have not used gas checks on either style bullet. But the 4.5 gr of unique under the 130gr bullet is probably less than 9mm pressures. If I were to push them at higher pressures, I would try gas checks. If you plan on shooting heavier bullets at higher pressures, I would suggest at least trying a gas check for accuracy. |
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Posted: 11/14/2022 12:13:21 PM EDT
[#20]
Im hunting this year with handloaded Lehigh Defense 176 Grain Controlled Fracturing. Granted I used them the last 3 years as well. They are moving about 1050fps and drop deer in their tracks with neck shots. So far I have taken 8 deer with them and have not had to track one.
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Posted: 12/10/2022 11:36:42 AM EDT
[Last Edit: tronco15]
[#21]
Working on a HD/Hog Hunting load. Used LC brass, Hornady 110gr V-Max, H110 and CCI 41s.
Shot at 25 yards out of an 8” Wilson Combat Barrel with Trijicon MRO.  Attached FileWhile conditions were not a factor because I was at an indoor range, my shooting setup was not ideal. Sat an a non-adjustable stool (it was a little low) and shot off an IFAK. This is the factory Hornady ammo Average 2106 S-D 11.9 ES 46 No Picture  Attached File19.3gr of H110 Average 2121 S-D 62.6 ES 134  Attached File19.6gr of H110 Average 2130 S-D 21.5 ES 50  Attached File19.9gr of H110 Average 2197 S-D 11.4 ES 23  Attached File20.2gr of H110 Average 2226 S-D 6.3 ES 12 |
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MO, USA
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Posted: 12/11/2022 9:23:35 AM EDT
[#22]
What was your overall round length? I am planning to do some 110s as well.
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Posted: 12/11/2022 10:25:11 AM EDT
[#23]
Quote HistoryOriginally Posted By 68MUDSTUD: Ok guys, I'm wanting to get into 300Blackout. I want to cast my own bullets for it, any advice on molds? I'll be powder coating them, and mostly or always subsonic. when I cast the heavies, should I still gas check? What barrel would be right for me? I dont mind playing the NFA game. Thanks... I guess I will start on pg 1. My process is:
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Posted: 12/11/2022 10:29:09 AM EDT
[#24]
Quote HistoryOriginally Posted By Joedirt199: What was your overall round length? I am planning to do some 110s as well. I explain how to determine OAL for bullets 180 gr and lighter. |
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UT, USA
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Posted: 12/13/2022 12:32:25 AM EDT
[#25]
so what is everyone using for subsonic projectiles in this cartridge? I've officially given up on 190gr SUB-X projectiles, its been something like 8 months since I've seen any available.
i have plenty of primers, brass, and powder. tired of waiting and hoping its available. i was loading 200gr ELD-X. i think ill go back to that since I can also load those in my 308 loads. 
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Posted: 12/13/2022 12:09:12 PM EDT
[#26]
Quote HistoryOriginally Posted By Mesooohoppy: so what is everyone using for subsonic projectiles in this cartridge? I've officially given up on 190gr SUB-X projectiles, its been something like 8 months since I've seen any available. i have plenty of primers, brass, and powder. tired of waiting and hoping its available. i was loading 200gr ELD-X. i think ill go back to that since I can also load those in my 308 loads. Depends on your application. I truly doubt that the 200 eldx will expand at subsonic speeds. But if you are just trying to get quiet rounds, any bullet about 200 grains will do it. Personally, I load for a bolt action and I load cast 130gr bullets. They would not cycle an AR though. |
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UT, USA
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Posted: 12/13/2022 2:13:22 PM EDT
[Last Edit: Mesooohoppy]
[#27]
Quote HistoryOriginally Posted By boman250: Depends on your application. I truly doubt that the 200 eldx will expand at subsonic speeds. But if you are just trying to get quiet rounds, any bullet about 200 grains will do it. Personally, I load for a bolt action and I load cast 130gr bullets. They would not cycle an AR though. You are correct, there's no way it's going to expand at 1050 fps. I just want something thats actually available on store shelves. As previously mentioned I can share that projectile with my 308 loads. Its going in a gas gun with a can so they've got to be heavy. Berrys is out of the equation as i also load for my brother who has a suppressed 1:5 twist. Berrys stuff can't handle that. Shame, if it could that would be my answer right there! |
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NH, USA
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Posted: 12/29/2022 7:49:49 PM EDT
[#28]
Another question. I asked this here instead of a new thread as all .300 info is supposed to be here.
Im loading 220 berrys. Recipe calls for 10ish g of powder and a coal of 2.260/maglength. Im using CFE BLK which is supposed to be position sensitive. Why cant I seat the bullet till its the length of a 150 grn projectile. This seats the large bullet right up against the powder basically eliminating the problem. There should not be a pressure problem with a sub load like this. Why load to mag length? |
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Posted: 12/29/2022 11:32:57 PM EDT
[#29]
Quote HistoryOriginally Posted By chucku: Another question. I asked this here instead of a new thread as all .300 info is supposed to be here. Im loading 220 berrys. Recipe calls for 10ish g of powder and a coal of 2.260/maglength. Im using CFE BLK which is supposed to be position sensitive. Why cant I seat the bullet till its the length of a 150 grn projectile. This seats the large bullet right up against the powder basically eliminating the problem. There should not be a pressure problem with a sub load like this. Why load to mag length? In a small, barely bottle necked cartridge like the 300 BO, you can increase pressure by seating the bullet deeper. If you plan on doing this, start with good load data, test the position sensitivity of your powder (I have never noticed it with any that I have tried) and slowly start working your projectile deeper checking for positional sensitivity and pressure. There is no reason to "just seat the bullet deep" and hope 10ish g of powder isn't gonna have a problem. |
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Posted: 12/30/2022 12:02:45 AM EDT
[#30]
Quote HistoryOriginally Posted By chucku: Another question. I asked this here instead of a new thread as all .300 info is supposed to be here. Im loading 220 berrys. Recipe calls for 10ish g of powder and a coal of 2.260/maglength. Im using CFE BLK which is supposed to be position sensitive. Why cant I seat the bullet till its the length of a 150 grn projectile. This seats the large bullet right up against the powder basically eliminating the problem. There should not be a pressure problem with a sub load like this. Why load to mag length? |
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WV, USA
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Posted: 12/30/2022 2:04:36 PM EDT
[#31]
Anybody tried the 175 gr Hornaday Sub-X bullet for subsonic loads? 190's are unobtanium it seems while the 175's are available.
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AL, USA
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Posted: 12/30/2022 7:05:45 PM EDT
[#32]
Quote HistoryOriginally Posted By HammerTech: Anybody tried the 175 gr Hornaday Sub-X bullet for subsonic loads? 190's are unobtanium it seems while the 175's are available. I haven't used the 175 hornady's but I am using 180gr sp pulls from American Reloading. 9.xx grains of VVN110 works great in my AR pistol w/saker and my Remington 700 aac bolt action with Sandman-S. Mixed brass. I don't remember COAL off the top of my head but it fits in an ar mag |
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Posted: 1/1/2023 1:27:57 AM EDT
[Last Edit: GarrettJ]
[#33]
Quote HistoryOriginally Posted By HammerTech: Anybody tried the 175 gr Hornaday Sub-X bullet for subsonic loads? 190's are unobtanium it seems while the 175's are available. I thought we discussed that here a couple months ago, but I can’t seem to find it. I had ok results working up to 10.8 gr. of N120. That load gave me around 960 fps from the 10.5” AR15. Bolt did not lock back, using standard CAR buffer & spring. When I added a silencer, it did lock back on the last shot. The same load gave me right at 1000 fps from a 16” Noveske barrel. Nonissue locking back, suppressed or otherwise. Both AR15s provided 5-shot groups around a 1” at 50 yards. The 10” Contender with SSK .300 Whisper barrel shot that load at 1015 fps. Again, most groups were around an inch, but the best group of the day was .386” @ 50 yds from this gun. I also tried 6.5 gr. of AA#2, which works great from the Contender, but is unlikely to cycle in a semi-auto. I tried shooting one into a line of milk jugs of water to check expansion. Unfortunately the bullet went through all 6 jugs and was not found. |
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WV, USA
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Posted: 1/1/2023 10:30:03 AM EDT
[#34]
@GarrettJ I searched but couldn't find anything. What COL did you wind up with?
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Posted: 1/1/2023 6:12:04 PM EDT
[#35]
Quote HistoryOriginally Posted By HammerTech: @GarrettJ I searched but couldn't find anything. What COL did you wind up with? Looks like 1.990” for these. And I found the discussion in the archives, with what had started as a discussion of the 190 SUB-X. I wish it told who made what comments in the archives. Makes it hard to follow otherwise. My comments on the 175s start at 7/30/22, with a picture of the three rifles I mentioned. |
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Posted: 1/2/2023 12:35:59 AM EDT
[#36]
Quote HistoryOriginally Posted By GarrettJ: Looks like 1.990" for these. And I found the discussion in the archives, with what had started as a discussion of the 190 SUB-X. I wish it told who made what comments in the archives. Makes it hard to follow otherwise. My comments on the 175s start at 7/30/22, with a picture of the three rifles I mentioned. The world we live in. 
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Posted: 1/6/2023 8:39:14 PM EDT
[#37]
Quote HistoryOriginally Posted By HammerTech: Anybody tried the 175 gr Hornaday Sub-X bullet for subsonic loads? 190's are unobtanium it seems while the 175's are available. @HammerTech Midway Hornady 190gr SUBX |
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USA
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Posted: 1/7/2023 9:19:20 PM EDT
[#38]
Anyone shooting the Savage PCS in 300 BO?
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TX, USA
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Posted: 1/19/2023 1:13:02 PM EDT
[#39]
Quote HistoryOriginally Posted By Mesooohoppy: You are correct, there's no way it's going to expand at 1050 fps. I just want something thats actually available on store shelves. As previously mentioned I can share that projectile with my 308 loads. Its going in a gas gun with a can so they've got to be heavy. Berrys is out of the equation as i also load for my brother who has a suppressed 1:5 twist. Berrys stuff can't handle that. Shame, if it could that would be my answer right there! I have been finding 208 ELD-M's on the shelf at a couple places recently. Already bought 300 of them over the past couple months. It is one of the only 200gr bullet I have been able to find locally. They shoot well at subsonic velocity. Can confirm they don't expand at 80yd, as I shot a hog in the neck and it just penciled through. Spine shot still dropped it, but not enough trauma for a quick kill. Funny enough, the box on the Hornady bullets is so oversized, I could fit all 100 fully completed rounds inside the box the bullets came in. I get 96 stacked neatly and the remaining 4 have to sit sideways, but they all fit. 
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USA
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Posted: 1/19/2023 8:45:11 PM EDT
[#40]
Was wondering if anyone can chime in on an issue with the Lee 312-160-2R that I'm trying to load with IMR4227. I powdercoat, size to 0.309 with a Lee sizer, then gas check. They're actually weighing around 165-168 gr by the time that's done. Brass is LC cut downs, annealed and sized.
Could not get the rounds to chamber completely with the bolt closed. First one I tried got stuck in the chamber to where I had to mortar it to get it out - though it was stuck in the rifling. Did some searching, seems like a lot of folks were using them short - like down to as low as 1.850" OAL. So I tried that - still wouldn't chamber. Ordered a Sheridan slotted gauge and it looks like it's not really the length that is the problem - but that the powder coating makes the bullet itself just thick enough to jam. You can see it hand up in the slotted gauge on the bullet, even at the short length. Going deep enough to get it to where the ogive isn't binding would be insanely short. Oh, and the sized brass (prior to seating the bullet) fit the Sheridan gauge perfectly - so it's not the brass. Other cast bullets (the Lee 309-230-5R) fit the Sheridan gauge just fine... it's just the 312-160 that binds. I've never run into this before, and not sure what (if any) options there are. Can't really make the bullet smaller, can't really seat it much deeper. Is that bullet just a no-go for my rifle? |
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Posted: 1/20/2023 12:24:19 AM EDT
[#41]
Quote HistoryOriginally Posted By jdl1020: Was wondering if anyone can chime in on an issue with the Lee 312-160-2R that I'm trying to load with IMR4227. I powdercoat, size to 0.309 with a Lee sizer, then gas check. They're actually weighing around 165-168 gr by the time that's done. Brass is LC cut downs, annealed and sized. Could not get the rounds to chamber completely with the bolt closed. First one I tried got stuck in the chamber to where I had to mortar it to get it out - though it was stuck in the rifling. Did some searching, seems like a lot of folks were using them short - like down to as low as 1.850" OAL. So I tried that - still wouldn't chamber. Ordered a Sheridan slotted gauge and it looks like it's not really the length that is the problem - but that the powder coating makes the bullet itself just thick enough to jam. You can see it hand up in the slotted gauge on the bullet, even at the short length. Going deep enough to get it to where the ogive isn't binding would be insanely short. Oh, and the sized brass (prior to seating the bullet) fit the Sheridan gauge perfectly - so it's not the brass. Other cast bullets (the Lee 309-230-5R) fit the Sheridan gauge just fine... it's just the 312-160 that binds. I've never run into this before, and not sure what (if any) options there are. Can't really make the bullet smaller, can't really seat it much deeper. Is that bullet just a no-go for my rifle? I anneal before forming the neck and trim to 1.360. I use LC and many other headstamps. I use the .250 ogive method to set OAL. See my first post in this thread, page 1. 4th or 5th post I believe. Explains it all. I seat to the crimping grove.....I call it a happy accident that works in my favor with this bullet. Never a feeding or chambering issue for me. I then crimp lightly with a Lee FCD. Ensure your sized cases chamber. If they don't, sizing is your issue. If they do that it's something to do with you bullet seating. |
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USA
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Posted: 1/20/2023 4:00:24 PM EDT
[#42]
Should have mentioned, am using Lancer 300 BO specific mags - so I thought the .250 trick applied to using 5.56 mags? Does it apply to 300 specific mags as well?
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USA
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Posted: 1/20/2023 7:08:18 PM EDT
[#43]
Any suggestions on good or at least starting loads for a 190gr subx over Unique (I'm actually using Universal).
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Posted: 1/20/2023 7:24:41 PM EDT
[#44]
Quote HistoryOriginally Posted By Tao: Any suggestions on good or at least starting loads for a 190gr subx over Unique (I'm actually using Universal). Why? And, I would start at 6 or 7 (Do your own research, etc) and work from there. I do not think there is anything published for this. I am spitballing based on some other experience. I used a 130 gr PCC bullet and started at 10 grains of Unique and worked down to 4. This was for a bolt action. |
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Posted: 1/20/2023 8:47:23 PM EDT
[#45]
Quote HistoryOriginally Posted By jdl1020: Should have mentioned, am using Lancer 300 BO specific mags - so I thought the .250 trick applied to using 5.56 mags? Does it apply to 300 specific mags as well? It's my understanding the 300 blk mags make a difference with the 200 gr plus bullets. At least try what works before you go off and try to reinvent the cartridge.
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USA
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Posted: 1/22/2023 1:19:36 AM EDT
[#46]
Quote HistoryOriginally Posted By PA452: I've been using 175SMK in my Blackout bolt gun since I got it in November. Thinking about trying 190gr bullets. I'm using Unique with the 175s. Doing some searching, I've seen at least a couple of instances where guys were using Unique with bullets around the 190 range. Anyone else have any experience with it? I've read of one guy using Unique with very heavy bullets, but I've also read that Unique is better used with midrange bullet weights in the Blackout. I don't know if 190 is on the high end or not. @PA452 do you have any recipes you can share using 190gr projectiles with Unique? I'm trying to work up a similar 190gr subsonic load. |
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TX, USA
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Posted: 2/12/2023 9:39:41 PM EDT
[Last Edit: acman145acp]
[#47]
I haven’t seen to many terminal reports in this thread.
I took a 140lb pig yesterday with a 125 tnt with 18.5 gr of 296. Pass through exit wound that would leave a blood trail one shot stop right behind the shoulder. 10.3” brl Eta 90 yatds |
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Posted: 2/12/2023 9:58:45 PM EDT
[#48]
Quote HistoryOriginally Posted By acman145acp: I haven’t seen to many terminal reports in this thread. I took a 140lb pig yesterday with a 125 tnt with 18.5 gr of 296. Pass through exit wound that would leave a blood trail one shot stop right behind the shoulder. 10.3” brl Eta 90 yatds I've wondered how 125 TNT would do. It's my plinking bullet, but I've been curious about loading it in my HD mags as well. I know 110 TAC-TX is the go to, but I've currently got factory Barnes 120 JHP in my HD mags and WAY more TNT bullets. I also don't want to have to worry much about poa/poi being too much different between my go to load and plinking load. |
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TX, USA
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Posted: 2/14/2023 8:01:31 PM EDT
[#49]
Quote HistoryOriginally Posted By spyderboy03: I've wondered how 125 TNT would do. It's my plinking bullet, but I've been curious about loading it in my HD mags as well. I know 110 TAC-TX is the go to, but I've currently got factory Barnes 120 JHP in my HD mags and WAY more TNT bullets. I also don't want to have to worry much about poa/poi being too much different between my go to load and plinking load. Naturaly you have to test your own gun …. I wasn’t in the mood to shoot paper but mine will ring an 8” gong with 110 vmax , 110 hrn sp, 125 tnt , 130 spr varmint every shot with a dead on hold zeroed for tnt’s My bil has shot two pigs with the same tnt load out of his 16” gun with same performance 1 shot drops one at 80 one at 100 yrds….. I wouldn’t be afraid to use this bullet for any med size game at least at 100 and in. I shot two pigs with his gun with 110 v max both ran off leaving no blood trail to follow while im certain it would be effective on two legged vermin It isn’t up to the performance on med size game.that i like to see. |
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Posted: 2/14/2023 8:24:15 PM EDT
[#50]
Quote HistoryOriginally Posted By acman145acp: I haven’t seen to many terminal reports in this thread. 110 gr. V-Max @ 2000 fps. “It’s coming right for us!” 
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