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KS, USA
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Posted: 3/21/2021 10:20:22 PM EDT
[#1]
Quote HistoryOriginally Posted By LuxorDeathbed: I needed a 223/556 chamber checker anyways and bought from midway. See how well it works out. Berrys bullets 220 gr at 2.300 OAL that gavintoobe uses bind up in AR mags. Plastic and steel. Need to try Berrys recommended length of 2.150 I've been loading my Berrys 220gr in pmags to 2.160 Function great |
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Posted: 3/22/2021 11:05:37 AM EDT
[Last Edit: LuxorDeathbed]
[#2]
Quote HistoryOriginally Posted By crag_dt: I've been loading my Berrys 220gr in pmags to 2.160 Function great 300 BO mags or 5.56 mags? What gen of Pmag? So far with just loading dummy rounds @COAL 2.150 to watch for feed lips and 20 rnd round in mag issues... I have a gen 2 (I believe) pmag 30, alum 30 rnd, and alum 2 rnd circa 1970s. The alum 30 and pmag are most forgiving, but the 20 mag gives indications there is something wrong. I am getting rounds tilting in the mag and if 10+ dummies loaded the feed lips are not contact the case 100%. EDIT: The 2.150 vs 2.300... the 2.150 definitely seems better thus far. EDIT 2: Pictures! Clearly something seems off. I think I have to seat futhur. 2.150  Attached FileRound being pushed inward (30 round metal mag)  Attached Fileogive 0.25 measure, earlier picture  Attached Filemarked approximate 0.25  Attached File |
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Posted: 3/30/2021 3:34:21 PM EDT
[#3]
I just got the urge and ordered an upper and dies.
I have an ancient box of 1,000 Hornady 110 grain RNSP intended for the M1 Carbine that I traded off years ago... has anyone tried to load these in the Blackout? |
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Posted: 3/30/2021 9:34:18 PM EDT
[#4]
OST
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Posted: 3/30/2021 9:41:31 PM EDT
[#5]
Those carbine bullets will work, but they’re not “optimal.” It took me a lot of fiddling to get them to run in my guns, mainly about seating depth so they would feed.
Being round nosed bullets, they won’t be as efficient as pointier spitzer bullets. I got decent accuracy with them running around 2100 FPS, but with the Sierra 110 gr HPs at about the same velocity I got much smaller groups - about half the size. I wound up seating the carbine bullets at 1.930”, and the Sierras at 1.970”. For reference, my 150gr FMJs were seated at 2.235” (to meet the criteria dryflash3 described above so they’d feed from .223 magazines). |
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Posted: 3/31/2021 2:07:46 AM EDT
[#6]
Thank you. I figured they might be problematic, but they have a huge advantage in that I actually have them.
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Posted: 3/31/2021 3:14:08 AM EDT
[#7]
Quote HistoryOriginally Posted By bigdb1: Thank you. I figured they might be problematic, but they have a huge advantage in that I actually have them. Just depends on the bullet. |
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Posted: 4/5/2021 7:47:07 PM EDT
[#8]
Anyone use a Squirrel Daddy jig for cutting down 223/5.56 to make 300BLK? They list 4 different versions on their site.
https://www.squirreldaddy.com/Cartridge-case-trimmers-s/294.htm I ordered this one the other day. https://www.squirreldaddy.com/Speedy-300-Blackout-Case-Trimming-Jig-p/sd24-103.htm I don't really know what, if any significant functional differences they would have vs one another. Anybody know? How about a case forming die, what are some good options? |
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NV, USA
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Posted: 4/6/2021 2:59:58 AM EDT
[#9]
Quote HistoryOriginally Posted By 11C1P: I ordered this one the other day. https://www.squirreldaddy.com/Speedy-300-Blackout-Case-Trimming-Jig-p/sd24-103.htm I don't really know what, if any significant functional differences they would have vs one another. Anybody know? How about a case forming die, what are some good options? I can't speak to the other versions but I have the one you ordered and it works well enough. I am going to start resizing in the 223 sizer first as I have noticed the pipeline gets held up by out of round necks. (also read this helps with the overall conversion process so going to give it a try) |
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Posted: 4/6/2021 11:21:20 AM EDT
[#10]
I use the Zep jig. It works great, and keeps my fingers well away from the sharp parts. I also bought their jig for converting 223 to Tokarev cases, but I haven’t gotten to use that one yet.
Nothing against Squirrel Daddy, but I didn’t see his products until after I’d bought from Zep. Zep’s is more expensive, but I don’t see how SD’s jig secures the case for consistent length cutting. |
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NV, USA
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Posted: 4/6/2021 5:30:11 PM EDT
[#11]
Quote HistoryOriginally Posted By GHPorter: I use the Zep jig. It works great, and keeps my fingers well away from the sharp parts. I also bought their jig for converting 223 to Tokarev cases, but I haven’t gotten to use that one yet. Nothing against Squirrel Daddy, but I didn’t see his products until after I’d bought from Zep. Zep’s is more expensive, but I don’t see how SD’s jig secures the case for consistent length cutting. Have to say, had I have seen the Zep first, I would have got it over the SD. That looks a bit more precise. |
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Posted: 4/7/2021 1:15:05 PM EDT
[#12]
The Carbine soft points wedge into the locking lugs like they were purpose designed for the task. The lead never touches the ramp. Never going to get these to feed.
Oh well. It would have been nice to use them up.  Attached File |
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Posted: 4/7/2021 4:54:53 PM EDT
[#13]
Quote HistoryOriginally Posted By bigdb1: The Carbine soft points wedge into the locking lugs like they were purpose designed for the task. The lead never touches the ramp. Never going to get these to feed. Oh well. It would have been nice to use them up. https://www.ar15.com/media/mediaFiles/320/9E14E1D4-D55B-4E35-BEED-261A87BD59B8_jpe-1896225.JPG All of my work with carbine bullets was with FMJs, not soft points. But I didn’t have issues with feeding once I got the right COAL. I was worried about whether or not I had enough bullet in the case, though. |
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Posted: 4/7/2021 5:06:54 PM EDT
[#14]
Quote HistoryOriginally Posted By GHPorter: All of my work with carbine bullets was with FMJs, not soft points. But I didn’t have issues with feeding once I got the right COAL. I was worried about whether or not I had enough bullet in the case, though. Have you tried crimping any of the heavy ones like that? While I have some factory fatties for my 300BLK, the heaviest I've loaded is 180gr. Those all crimped just fine, using the Lee FCD. |
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Posted: 4/7/2021 5:16:10 PM EDT
[Last Edit: W_E_G]
[#15]
Quote HistoryOriginally Posted By bigdb1: The Carbine soft points wedge into the locking lugs like they were purpose designed for the task. The lead never touches the ramp. Never going to get these to feed. Oh well. It would have been nice to use them up. https://www.ar15.com/media/mediaFiles/320/9E14E1D4-D55B-4E35-BEED-261A87BD59B8_jpe-1896225.JPG You are allowed to chamfer the sharp edges of the feed ramps. My Palmetto upper was catching the Lehigh 115-grain Controlled Chaos bullets. I chamfered the sharp edges on the feed ramp, and it now feeds those bullets (and all others) slick as butter. I have NOT tried any 30 carbine bullets. I have shot a lot of jacketed 115's, 147's, 200's, and 220's. |
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Posted: 4/7/2021 7:44:52 PM EDT
[#16]
Quote HistoryOriginally Posted By W_E_G: You are allowed to chamfer the sharp edges of the feed ramps. My Palmetto upper was catching the Lehigh 115-grain Controlled Chaos bullets. I chamfered the sharp edges on the feed ramp, and it now feeds those bullets (and all others) slick as butter. I have NOT tried any 30 carbine bullets. I have shot a lot of jacketed 115's, 147's, 200's, and 220's. It’s hard to see in the picture, but the bullet isn’t hitting the edges of the ramp/lugs at all. It is completely unmarked. It apparently drives straight out of the magazine centered in between the lugs and wedges there. As for OAL, it’s a stubby RN. Any longer it hits the magazine rib on the flat body of the bullet. Any shorter it doesn’t hit the rib at all. |
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Posted: 4/7/2021 11:09:12 PM EDT
[#17]
Quote HistoryOriginally Posted By bigdb1: It’s hard to see in the picture, but the bullet isn’t hitting the edges of the ramp/lugs at all. It is completely unmarked. It apparently drives straight out of the magazine centered in between the lugs and wedges there. As for OAL, it’s a stubby RN. Any longer it hits the magazine rib on the flat body of the bullet. Any shorter it doesn’t hit the rib at all. Are you using a 5.56 mag or a .300 BO mag? |
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Posted: 4/8/2021 1:29:26 AM EDT
[#18]
Quote HistoryOriginally Posted By W_E_G: Are you using a 5.56 mag or a .300 BO mag? 5.56. I’m not buying new magazines for this project. |
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Posted: 4/8/2021 8:29:50 PM EDT
[#19]
Might want to BORROW a .300 BO mag then.
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Posted: 4/9/2021 1:02:36 AM EDT
[#20]
Believe it or not, this is the first 300 BLK in my circle of friends. They are mostly lever and bolt guys.
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Posted: 4/9/2021 2:34:51 AM EDT
[#21]
Quote HistoryOriginally Posted By W_E_G: Might want to BORROW a .300 BO mag then. Any reason why he can't use his standard mag? I have shot thousands of supers and subs out of Lancers, Magpuls and D&H aluminum mags without any problems out of a half dozen 300BLK ARs without a single 300BLK mag. If he is using reloads as long as he loads them to make sure the ogive on the bullet lines up with the inside follower on the mag there shouldn't be any problems. |
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Posted: 4/9/2021 8:09:53 AM EDT
[#22]
Because the cause of feed-issues is not always the first thing you suspect.
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Posted: 4/9/2021 2:26:54 PM EDT
[#23]
I definitely want to use the 5.56 magazines I already have, particularly since I wouldn’t be buying more of the Carbine bullets after they were shot up.
I bought 500 pieces of 147 grain FMJ. That will hold me for a bit. Perhaps I’ll get one of the Magpul 20s when they’re available and revisit the Carbine bullets. A single magazine won’t be a huge investment. (But I still can’t picture those things feeding.) |
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Posted: 4/9/2021 3:34:42 PM EDT
[#24]
Quote HistoryOriginally Posted By Recoil737: Any reason why he can't use his standard mag? I have shot thousands of supers and subs out of Lancers, Magpuls and D&H aluminum mags without any problems out of a half dozen 300BLK ARs without a single 300BLK mag. If he is using reloads as long as he loads them to make sure the ogive on the bullet lines up with the inside follower on the mag there shouldn't be any problems. I've been using just the regular 5.56 Lancers for my 300BLK's for going on 5 years now with no feed issues either. I stick to clear Lancers that are marked for 300BLK & don't use clear Lancers for anything but 300BLK. The clear also helps me visually see that it's 300BLK loaded the in the mags as well. 
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Posted: 4/10/2021 2:30:37 AM EDT
[#25]
Quote HistoryOriginally Posted By 11C1P: I've been using just the regular 5.56 Lancers for my 300BLK's for going on 5 years now with no feed issues either. I stick to clear Lancers that are marked for 300BLK & don't use clear Lancers for anything but 300BLK. The clear also helps me visually see that it's 300BLK loaded the in the mags as well. That is funny as that is what I do also. I mainly use the lancers for the 300BLK as it is easy to see that they are 300BLK and not 223. I also use the clear ones in reloading. When I start a new run I do about 15 round through the press then load them up in a clear lancer to see how they are sitting. This is my double check to make sure I didn't write down the measurements wrong from my previous load data. |
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Posted: 4/11/2021 10:55:14 PM EDT
[Last Edit: boman250]
[#26]
Played with my 300 BO today. I used a new mould designed for the 7.62x39, but I sized them down to .309". It drops 2 bullets, a 130gr plain base, and a 127gr gas check design.
I worked down from 5.7gr to 4.3 where the rounds were subsonic, then worked up till the primers looked a little suspect. Gr FPS 4.3 1066 4.8 1138 5.2 1210 5.7 1292 6.7 1453 7.2 1489 7.8 1571 8.2 1617 8.6 1669 9.2 1788 9.5 1791 9.8 1784 10 1817 10.2 1811 Honestly surprised I got that high in velocity out of the 16" barrel using Unique. Accuracy was good with the 4.3gr load. At 100 yards I got 1.5" with the plain base bullets and then switched to the gas check design without using a check (Just don't have any yet) and got 1.75". If I have some time next weekend, I plan to test the higher charges for accuracy and see how they perform. |
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Posted: 4/20/2021 8:34:45 PM EDT
[Last Edit: Chris94L]
[#27]
Anyone tried the Barnes 120gn TacTX? The only load Barnes has listed on their page is using H110.
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Posted: 4/20/2021 9:11:20 PM EDT
[#28]
Quote HistoryOriginally Posted By Chris94L: Anyone tried the Barnes 120gn TacTX? The only load Barnes has listed on their page is using H110. I havent done the 120 grn but the 110. Ive tried different powders and H110 is the best one for supers. Lil gun is next. |
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Posted: 4/20/2021 10:26:18 PM EDT
[#29]
Quote HistoryOriginally Posted By Chris94L: Anyone tried the Barnes 120gn TacTX? The only load Barnes has listed on their page is using H110. No, but I’ve got some 125 gr tipped Makers that I’ve been avoiding loading. I need to get on that. |
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Posted: 4/20/2021 11:28:15 PM EDT
[#30]
Quote HistoryOriginally Posted By W_E_G:
Might want to BORROW a .300 BO mag then. |
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Posted: 4/21/2021 7:54:55 AM EDT
[#31]
Quote HistoryOriginally Posted By Chris94L: Anyone tried the Barnes 120gn TacTX? The only load Barnes has listed on their page is using H110. IMR 4227 burns clean and is quiet in suppressors, its just not the fastest. |
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Posted: 4/21/2021 7:55:51 AM EDT
[#32]
Quote HistoryOriginally Posted By Jason280: I didn't know such a thing existed...what are the major differences? Quote HistoryOriginally Posted By Jason280: Originally Posted By W_E_G: Might want to BORROW a .300 BO mag then. I didn't know such a thing existed...what are the major differences? The location of the front rib for bullet clearance on the 300. |
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Posted: 4/21/2021 11:26:56 AM EDT
[#33]
Quote HistoryOriginally Posted By bigdb1: I definitely want to use the 5.56 magazines I already have, particularly since I wouldn’t be buying more of the Carbine bullets after they were shot up. I bought 500 pieces of 147 grain FMJ. That will hold me for a bit. Perhaps I’ll get one of the Magpul 20s when they’re available and revisit the Carbine bullets. A single magazine won’t be a huge investment. (But I still can’t picture those things feeding.) @bigdb1 You could always do a WTT in the EE reloading section, I bet someone would trade you for your carbine bullets for something more feeding friendly....like 147 pulls... just an idea. |
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Posted: 4/21/2021 12:44:20 PM EDT
[Last Edit: W_E_G]
[#34]
@Jason280
Red arrow - rib location (300 mag doesn't pinch the ammo stack - less friction in the stack) Green arrow - lip location (300 mag releases the round from the mag sooner during feeding - less nose-dive of rounds)  Attached File |
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Posted: 4/21/2021 9:59:32 PM EDT
[#35]
Thanks WEG.
Does using the BO mag relieve the need to do the .25 in thing. I'm still not sure how that works. Does it have anything to do with being behind that rib from the pic? |
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USA
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Posted: 4/22/2021 2:04:33 AM EDT
[Last Edit: TheGunslinger]
[#36]
Has anyone used the Accurate 11FS powder? Or know which page to look at. I plan on using it for light to medium weight supers. Alliant has some data but interested to see if people like it or not.
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Posted: 4/22/2021 3:01:08 PM EDT
[#37]
Quote HistoryOriginally Posted By TxLewis: Thanks WEG. Does using the BO mag relieve the need to do the .25 in thing. I'm still not sure how that works. Does it have anything to do with being behind that rib from the pic? The .300 BO mag allows you to load rounds longer without pinching the ammo stack. The shorter feed lips work to prevent rounds nose-diving into the feed ramp. |
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Posted: 4/25/2021 10:05:16 PM EDT
[#38]
Anyone load the Maker TREX 125s with H110?
I made a small ladder (3 rounds each) to test for pressure signs. 17.5, 18.0, 18.2 gr of H110. |
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Posted: 4/26/2021 8:21:30 AM EDT
[#39]
Quote HistoryOriginally Posted By lilMAC25: Anyone load the Maker TREX 125s with H110? I made a small ladder (3 rounds each) to test for pressure signs. 17.5, 18.0, 18.2 gr of H110. No but Sierra shows a max load of 18.7 for several 125 bullets. Might be able to squeeze an extra half grain carefully. Should be ~2200fps. I load the TNT's fwiw. |
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Posted: 4/26/2021 10:46:01 AM EDT
[Last Edit: lilMAC25]
[#40]
Quote HistoryOriginally Posted By UndrGrndPrdcts: No but Sierra shows a max load of 18.7 for several 125 bullets. Might be able to squeeze an extra half grain carefully. Should be ~2200fps. I load the TNT's fwiw. Quote HistoryOriginally Posted By UndrGrndPrdcts: Originally Posted By lilMAC25: Anyone load the Maker TREX 125s with H110? I made a small ladder (3 rounds each) to test for pressure signs. 17.5, 18.0, 18.2 gr of H110. No but Sierra shows a max load of 18.7 for several 125 bullets. Might be able to squeeze an extra half grain carefully. Should be ~2200fps. I load the TNT's fwiw. Thanks, I do as well. I can’t remember what my load for those even are. I’ll need to dig out through my reloading journal. |
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Posted: 4/30/2021 6:23:15 PM EDT
[#41]
Took my first 20 reloads with 147 grain FMJ and RL7 to the range to function test the rifle. Feed and function was 100% and I had the rifle sighted in with only 6 shots. Pretty pleased with everything so far.
This is 18.0 grains of RL7, still half a grain under max. Do all supersonic 300 BLK loads fill the case like this? 
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Posted: 4/30/2021 6:37:36 PM EDT
[#42]
Quote HistoryOriginally Posted By bigdb1: Took my first 20 reloads with 147 grain FMJ and RL7 to the range to function test the rifle. Feed and function was 100% and I had the rifle sighted in with only 6 shots. Pretty pleased with everything so far. This is 18.0 grains of RL7, still half a grain under max. Do all supersonic 300 BLK loads fill the case like this? http://imashooter2.com/pictures/18gr_rl7.jpg My 125 tnt load with 4227 is completely full. |
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Posted: 5/1/2021 12:39:11 AM EDT
[#43]
Quote HistoryOriginally Posted By bigdb1: Took my first 20 reloads with 147 grain FMJ and RL7 to the range to function test the rifle. Feed and function was 100% and I had the rifle sighted in with only 6 shots. Pretty pleased with everything so far. This is 18.0 grains of RL7, still half a grain under max. Do all supersonic 300 BLK loads fill the case like this? http://imashooter2.com/pictures/18gr_rl7.jpg |
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Posted: 5/1/2021 2:30:29 PM EDT
[#44]
Quote HistoryOriginally Posted By bigdb1: Took my first 20 reloads with 147 grain FMJ and RL7 to the range to function test the rifle. Feed and function was 100% and I had the rifle sighted in with only 6 shots. Pretty pleased with everything so far. This is 18.0 grains of RL7, still half a grain under max. Do all supersonic 300 BLK loads fill the case like this? http://imashooter2.com/pictures/18gr_rl7.jpg You might get it a little “settled” in the case, but it’s common for the case to be pretty full. With some powders appropriate for supersonic loads, you don’t want much less than full - H110 is an example. IMR4227 is another stick-type powder that’s really good in Blackout. My loads with that powder startled me with how full the case was. Since the manual didn’t say it was a compressed load, I wanted to make sure I hadn’t done something wrong. It turned out that since I was weighing each throw, when I poured the powder into the case, the funnel just let it flow straight down. Instead, I should have poured the pan onto the side of the funnel, which would have “spun” the powder into the case and let it settle better. That’s something to keep in mind when you use stick-type powders with this caliber. |
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ID, USA
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Posted: 5/2/2021 9:55:46 PM EDT
[Last Edit: DaveSpud]
[#45]
Quote HistoryOriginally Posted By UndrGrndPrdcts: Obviously I don't want to do that. That's why I asked that specific question. Quote HistoryOriginally Posted By UndrGrndPrdcts: Originally Posted By W_E_G: If you shoot cast lead through a suppressor, you will fill the suppressor with lead. Think about how you want to deal with that. Obviously I don't want to do that. That's why I asked that specific question. Just recently got a suppressor, no no long-term experience, but I can tell you that cast bullets, when properly powder coated, do NOT lead my barrel. Been shooting the cast lead, powder coated, for about 4 years. If they don't leave residue in the barrel, I don't see how they leave residue in the suppressor. ETA: I'm shooting Lee's 230gr. cast bullets, powder coated, through an OdinWorks Badland suppressor. Also shooting Lee's 155gr. cast bullet, supersonic, through the suppressor. |
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Posted: 5/2/2021 10:56:08 PM EDT
[#46]
Loaded up 55 count of 110 SP Hornady over 19.5 gr of H110. The Hornady data (over 20 gr, IIRC) in their book is quite a bit more aggressive than that from Hogdgon (19.4 as the MAX). I’ve got the projectiles to make another 145 or so for a total of 200.
I’m not looking for super accuracy with these rounds, they’re just for blasting. Not that I’d hesitate to shoot a hog with one. |
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ID, USA
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Posted: 5/4/2021 9:20:07 PM EDT
[#47]
Quote HistoryOriginally Posted By lilMAC25: Loaded up 55 count of 110 SP Hornady over 19.5 gr of H110. The Hornady data (over 20 gr, IIRC) in their book is quite a bit more aggressive than that from Hogdgon (19.4 as the MAX). I’ve got the projectiles to make another 145 or so for a total of 200. I’m not looking for super accuracy with these rounds, they’re just for blasting. Not that I’d hesitate to shoot a hog with one. I think you'll be pleased with the results. My favorite accuracy load is 19.2gr of H110 under the 110 Hornady VMAX. |
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Posted: 5/5/2021 12:27:19 PM EDT
[#48]
Except for H110 being kind of finicky, that sounds like a good load. I use Lil’ Gun for most of my Blackout loads because it’s kind of like a “less finicky cousin” of H110.
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Posted: 5/5/2021 7:38:43 PM EDT
[#49]
Quote HistoryOriginally Posted By GHPorter: Except for H110 being kind of finicky, that sounds like a good load. I use Lil’ Gun for most of my Blackout loads because it’s kind of like a “less finicky cousin” of H110. I've loaded plenty of H110. Seems to be ok to me. Of course, I haven't chrono'ed anything. All my tests and assessments are based on overpressure signs (supers) or sound (subs). |
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Posted: 5/5/2021 8:40:13 PM EDT
[#50]
The remarks about H110 revolve around its tendency to be just fine up to a point. Then with little extra added powder it starts really pounding the snot out of your brass.
Its a "magnum" pistol powder, and that's how magnum pistol powders tend to play. You can get that extra 100 fps out of it over other powders. But watch out when you go for that extra 125. |
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