User Panel
User Panel
User Panel
|
Posted: 1/12/2015 7:33:32 AM EDT
[#1]
I've run some 208 Hornady AMAX with IMR 4227 @ 9.7 grains but have settled on 10.0 grains out of a 9" barrel.
On the chambering problem I have a friend with a 16" S&W rifle with what seems like a very tight chamber, brass formed from mil cases do not chamber so we have resorted to outside neck turning. Brass formed from commercial cases usually function fine. |
|
|
|
Posted: 1/12/2015 7:40:48 AM EDT
[#2]
Quoted:
1) Cases that gage properly (using a Wilson Case gage) are sticking in the chamber (not fully seating) about 1/10 of the time. Cases are gaged before use AND after failure. They gage perfectly, every time. a) This virtually never happens with cases that have been successfully fired as .300blk previously. This only happens with newly formed cases (from chopped .223 brass) Super-Sonic Recipe: -Chopped .223 Rem case (various) -CCI Small Rifle Primer -16.5gr IMR 4227 Powder -125gr Hornady SST Bullets 2) A1680 is still unobtanium, wtf. 3) I have been using IMR4227 for 220gr (SMK) subs. According to the Hornady Manual 9th edition, 10.5gr results in @1200fps in a 16" bbl. I tried 10.0gr today in a 10.3" SBR suppressed with an AAC 7.62 SDN. 80% of the rounds are still coming out super-sonic. How low can I go (charge wise) and still cycle the action? How thick are your neck walls? |
|
|
|
Posted: 1/12/2015 3:37:18 PM EDT
[#3]
Quote HistoryQuoted:
How thick are your neck walls? Quote HistoryQuoted:
Quoted:
1) Cases that gage properly (using a Wilson Case gage) are sticking in the chamber (not fully seating) about 1/10 of the time. Cases are gaged before use AND after failure. They gage perfectly, every time. a) This virtually never happens with cases that have been successfully fired as .300blk previously. This only happens with newly formed cases (from chopped .223 brass) Super-Sonic Recipe: -Chopped .223 Rem case (various) -CCI Small Rifle Primer -16.5gr IMR 4227 Powder -125gr Hornady SST Bullets 2) A1680 is still unobtanium, wtf. 3) I have been using IMR4227 for 220gr (SMK) subs. According to the Hornady Manual 9th edition, 10.5gr results in @1200fps in a 16" bbl. I tried 10.0gr today in a 10.3" SBR suppressed with an AAC 7.62 SDN. 80% of the rounds are still coming out super-sonic. How low can I go (charge wise) and still cycle the action? How thick are your neck walls? I'm really not trying to be a hard on here but... If the finished cartridge gages perfectly, <Hildabeast> what difference does that make? <Hildabeast> |
|
|
|
Posted: 1/12/2015 3:48:02 PM EDT
[#4]
Quote HistoryQuoted:
I'm really not trying to be a hard on here but... If the finished cartridge gages perfectly, <Hildabeast> what difference does that make? <Hildabeast> Quote HistoryQuoted:
Quoted:
How thick are your neck walls? I'm really not trying to be a hard on here but... If the finished cartridge gages perfectly, <Hildabeast> what difference does that make? <Hildabeast> Wilson case gauges measure case length for headspace and trimming needs. It doesn't measure body size. From their site: One piece gage that will check overall length to indicate the need for trimming, datum to head length to assure correct headspace and to prevent over sizing. Available for most popular rimless cases.
Note: Does not measure body diameters. This gage is intended to be used with fired cases to determine a basis for full length sizing and trimming. What you would need (gauge-wise) would be a slotted Seridan ammunition gauge. I bought mine here: http://ballistictools.com/store/sheridan-engineering-300-blk-slotted-gauge However, they are cut to minimum SAAMI spec, which is freaking tight. I have also found that with the larger 220r bullets, the gauge is way too tight where the bullet ends up to be super useful. With 115r and such, everything chambers fine, but the bullet ends up hitting the end of the gauge where the chamber ends. However, assuming the Wilson gauge works, the only thing left really would be bullet seating depth and neck thickness. You can measure those with a caliper. So, check neck wall thickness and check the diameter of the round at the neck with the bullet seated and compare it to factory rounds that work. There is some brass out there that ends up being too thick for some chambers. |
|
|
|
Posted: 1/12/2015 3:53:13 PM EDT
[#5]
Quote HistoryQuoted:
I'm really not trying to be a hard on here but... If the finished cartridge gages perfectly, <Hildabeast> what difference does that make? <Hildabeast> Quote HistoryQuoted:
Quoted:
Quoted:
1) Cases that gage properly (using a Wilson Case gage) are sticking in the chamber (not fully seating) about 1/10 of the time. Cases are gaged before use AND after failure. They gage perfectly, every time. a) This virtually never happens with cases that have been successfully fired as .300blk previously. This only happens with newly formed cases (from chopped .223 brass) Super-Sonic Recipe: -Chopped .223 Rem case (various) -CCI Small Rifle Primer -16.5gr IMR 4227 Powder -125gr Hornady SST Bullets 2) A1680 is still unobtanium, wtf. 3) I have been using IMR4227 for 220gr (SMK) subs. According to the Hornady Manual 9th edition, 10.5gr results in @1200fps in a 16" bbl. I tried 10.0gr today in a 10.3" SBR suppressed with an AAC 7.62 SDN. 80% of the rounds are still coming out super-sonic. How low can I go (charge wise) and still cycle the action? How thick are your neck walls? I'm really not trying to be a hard on here but... If the finished cartridge gages perfectly, <Hildabeast> what difference does that make? <Hildabeast> Well, because I don't know that your particular case gage checks neck diameter as a no go gage, or just shoulder to case head length. |
|
|
|
Posted: 1/12/2015 4:29:37 PM EDT
[#6]
Just checking how you are using your gauge,
End of the case below end of the gauge, but above the cut. Right? I also have the Wilson gauge and used it successfully until I got the Hornady headspace gauge. Did you anneal your cases before forming the shoulder? Possible you can have thick necks and with a bullet seated, would cause a chambering problem. Please mention the headstamps of your formed cases. |
|
|
|
Posted: 1/12/2015 4:44:46 PM EDT
[#7]
The wilson gauge is not a good chamber gauge, i learned this after buying ones in .223 and .308. it is god for case length but not for checking chamber fit
The Sheridan gauge is a chamber gauge and highly recommended for 300blk |
|
|
|
Posted: 1/12/2015 5:37:09 PM EDT
[#8]
Quote HistoryQuoted:
The wilson gauge is not a good chamber gauge, i learned this after buying ones in .223 and .308. it is god for case length but not for checking chamber fit The Sheridan gauge is a chamber gauge and highly recommended for 300blk Thank you to you and to chrismartin (above) for the recommendation. I'll certainly check out the Sheridan. |
|
|
|
Posted: 1/12/2015 5:52:58 PM EDT
[#9]
Alright, I mic'd the case necks on some of the hinky cartridges.
.370 .360 .365 .350 .365 ...so they are definitely oversized according to the manual. Thanks for the good advice everyone. I didn't realize the Wilson wasn't accounting for diameter. I love this place. ETA: The hang ups were experienced in a S&W .300 Whisper upper. Someone mentioned above that they are know for having tight chambers. This is another factor to consider. |
|
|
|
Posted: 1/12/2015 6:10:36 PM EDT
[#10]
|
|
|
|
Posted: 1/12/2015 7:17:50 PM EDT
[#11]
The Sheridan gauge will drive you to drink, cases deemed not worthy are often fine. The darn thing is just too precise, Wilson works fine for all the BLK guns we load for. We have encountered a chamber that requires about 2-3 thousands more bump to run reliably. The reverse is true, with one chamber needing to be on the maximum head space side of the gauge to prevent gas leaking around the case ( supers and subs suppressed).
Not all chambers are perfect, requiring minor adjustment in OAL and shoulder bump. Neck sizing only will also reduce the gas/crud issue in suppressed subsonic loads. Port size, buffer weight and spring length all play into a well running weapon. In my reloading, the Sheridan isn't really needed, maybe if using a bunch of different brass. We have used mostly LC, RP and WIN. for our formed cases. Once in awhile some odd ball slips in, but still no issues. We are using Hornady dies and they are working fine, a RCBS die worked, but with a bit different sizing at the shoulder. It really sounds like initial sizing is not set quite right.... but then again the necks are thick like this old redneck. |
|
|
|
Posted: 1/12/2015 7:43:02 PM EDT
[#12]
Quote HistoryQuoted:
Alright, I mic'd the case necks on some of the hinky cartridges. .370 .360 .365 .350 .365 ...so they are definitely oversized according to the manual. Thanks for the good advice everyone. I didn't realize the Wilson wasn't accounting for diameter. I love this place. ETA: The hang ups were experienced in a S&W .300 Whisper upper. Someone mentioned above that they are know for having tight chambers. This is another factor to consider. There's a nice list of good and bad brass for conversion to 300 Blackout on 300blktalk.com. I'm curious which headstamp the bigger rounds turn out to have... |
|
|
|
Posted: 1/12/2015 8:10:45 PM EDT
[#13]
Quote HistoryQuoted:
There's a nice list of good and bad brass for conversion to 300 Blackout on 300blktalk.com. I'm curious which headstamp the bigger rounds turn out to have... Quote HistoryQuoted:
Quoted:
Alright, I mic'd the case necks on some of the hinky cartridges. .370 .360 .365 .350 .365 ...so they are definitely oversized according to the manual. Thanks for the good advice everyone. I didn't realize the Wilson wasn't accounting for diameter. I love this place. ETA: The hang ups were experienced in a S&W .300 Whisper upper. Someone mentioned above that they are know for having tight chambers. This is another factor to consider. There's a nice list of good and bad brass for conversion to 300 Blackout on 300blktalk.com. I'm curious which headstamp the bigger rounds turn out to have... Out of 20 pieces here are the counts -TAA x7 -Lake City x6 -Royal Ordinance Radway Green x2 -Winchester x1 -Misc (unknown) x4 |
|
|
|
Posted: 1/13/2015 1:23:06 AM EDT
[#14]
I had a similar problem with cases. It wouldn't chamber unless some umph was put to it by letting the carrier slam it into place.
I found it that the barrel chamber was out of spec. |
|
|
|
Posted: 1/13/2015 3:04:54 PM EDT
[#15]
Quoted:
1) Cases that gage properly (using a Wilson Case gage) are sticking in the chamber (not fully seating) about 1/10 of the time. Cases are gaged before use AND after failure. They gage perfectly, every time. a) This virtually never happens with cases that have been successfully fired as .300blk previously. This only happens with newly formed cases (from chopped .223 brass) Super-Sonic Recipe: -Chopped .223 Rem case (various) -CCI Small Rifle Primer -16.5gr IMR 4227 Powder -125gr Hornady SST Bullets 2) A1680 is still unobtanium, wtf. 3) I have been using IMR4227 for 220gr (SMK) subs. According to the Hornady Manual 9th edition, 10.5gr results in @1200fps in a 16" bbl. I tried 10.0gr today in a 10.3" SBR suppressed with an AAC 7.62 SDN. 80% of the rounds are still coming out super-sonic. How low can I go (charge wise) and still cycle the action? Get a Sheridan slotted case gauge. Its 60.00. its set to the minimum measurements. That way if it fits in the case gauge it will fit your action and ive never had any now since I got it that haven't fit in my AR. Doc |
|
|
|
Posted: 1/13/2015 8:47:23 PM EDT
[#16]
If the gauge you are using does not match your chamber it is worthless.
Use your chamber as a gauge... |
|
|
|
Posted: 1/14/2015 8:40:32 AM EDT
[#17]
Try tightening down the resizing die a half a turn.
I think your shoulder on the brass is too long. It is really hard to get an accurate measure on the shoulder because of the way it is sloped. Also, like the lug nuts on a wheel, sometimes the dies settle in and the tolerances get a little out. Try it and let us know, you don't have to go to the range, just cycle the action, if the round doesn't chamber you will know it right away. (My first post but I have reloaded and and shot nearly 5k rounds of home made 300) |
|
|
|
Posted: 1/14/2015 8:54:02 AM EDT
[#18]
I run the brass through the resizing die twice for newly formed 300 blk brass. One pull, rotate the brass a bit and then another. For me this results in a better defined neck and a more uniform case overall. I would also check to make sure your resizing die is fully in place and touching the ram, then an extra half/full turn.
|
|
|
|
Posted: 1/14/2015 12:48:04 PM EDT
[#19]
Quote HistoryQuoted:
The wilson gauge is not a good chamber gauge, i learned this after buying ones in .223 and .308. it is god for case length but not for checking chamber fit The Sheridan gauge is a chamber gauge and highly recommended for 300blk what Gary said.. |
|
|
|
Posted: 1/14/2015 3:24:34 PM EDT
[#20]
Quote HistoryQuoted: Try tightening down the resizing die a half a turn. I think your shoulder on the brass is too long. It is really hard to get an accurate measure on the shoulder because of the way it is sloped. Also, like the lug nuts on a wheel, sometimes the dies settle in and the tolerances get a little out. Try it and let us know, you don't have to go to the range, just cycle the action, if the round doesn't chamber you will know it right away. (My first post but I have reloaded and and shot nearly 5k rounds of home made 300) Welcome to Arfcom and the Reloading Forum.  To introduce yourself, post a pic of your reloading bench in this thread, http://www.ar15.com/forums/t_6_42/262015_Official_Reloading_Bench_Picture_Thread___Now_with_100__more_Pictures_.html My bench is on page 6. If you need help posting a pic, look in FAQ's (top of the page) for instructions. |
|
|
|
Posted: 1/14/2015 3:25:28 PM EDT
[#21]
Quote HistoryQuoted:
what Gary said.. Quote HistoryQuoted:
Quoted:
The wilson gauge is not a good chamber gauge, i learned this after buying ones in .223 and .308. it is god for case length but not for checking chamber fit The Sheridan gauge is a chamber gauge and highly recommended for 300blk what Gary said.. Sheridan slotted gauge FTW! You can order directly from them. Mom and pop outfit! Even showed me the quality difference in commercial ammo! Keep in mind it is precisely set to min sammi specs, MIN being they key word |
|
|
|
Posted: 1/14/2015 7:26:10 PM EDT
[#22]
The sub-sonic issue is still unresolved.
I dropped the charge to 9.6gr of IMR4227 and tested the setup today. 40 rounds fired and virtually the same result. Majority of rounds went super. I don't know how much of a factor this is but, the temperature was 31 degrees. I will be dropping the charge to 9.3gr for the next batch. I hope that works. |
|
|
|
Posted: 1/14/2015 8:02:00 PM EDT
[#23]
Quote HistoryQuoted:
The sub-sonic issue is still unresolved. I dropped the charge to 9.6gr of IMR4227 and tested the setup today. 40 rounds fired and virtually the same result. Majority of rounds went super. I don't know how much of a factor this is but, the temperature was 31 degrees. I will be dropping the charge to 9.3gr for the next batch. I hope that works. Temp is usually a factor |
|
|
|
Posted: 1/14/2015 8:02:21 PM EDT
[#24]
What actual velocity are you getting?
|
|
|
|
Posted: 1/14/2015 8:04:44 PM EDT
[#25]
Quote HistoryQuoted:
What actual velocity are you getting? Well, I don't have a chronograph. I can distinctly hear the crack of most of the rounds going super. More importantly, I can hear when they don't. The difference is obvious. |
|
|
|
Posted: 1/14/2015 8:08:38 PM EDT
[#26]
Find a manual and come up with an an estimate of how muc hvelocity is gained with each .1gr powder difference. Then adjust down to 950. You're probably around 1050-1100
|
|
|
|
Posted: 1/14/2015 9:32:13 PM EDT
[#27]
Quote HistoryQuoted:
The sub-sonic issue is still unresolved. I dropped the charge to 9.6gr of IMR4227 and tested the setup today. 40 rounds fired and virtually the same result. Majority of rounds went super. I don't know how much of a factor this is but, the temperature was 31 degrees. I will be dropping the charge to 9.3gr for the next batch. I hope that works. what bullet and what OAL? Elevation too please. |
|
|
|
Posted: 1/14/2015 9:57:26 PM EDT
[#28]
Without a chronograph it is really hard to do this by ear only. You can get by, but I tried that and ended up being around 850fps when I would have sworn I was close to 1000fps.
|
|
|
|
Posted: 1/15/2015 2:49:18 AM EDT
[#29]
Quote HistoryQuoted:
Without a chronograph it is really hard to do this by ear only. You can get by, but I tried that and ended up being around 850fps when I would have sworn I was close to 1000fps. If that is the case, I had better get one. |
|
|
|
Posted: 1/15/2015 2:57:36 AM EDT
[#30]
Quote HistoryQuoted:
what bullet and what OAL? Elevation too please. Quote HistoryQuoted:
Quoted:
The sub-sonic issue is still unresolved. I dropped the charge to 9.6gr of IMR4227 and tested the setup today. 40 rounds fired and virtually the same result. Majority of rounds went super. I don't know how much of a factor this is but, the temperature was 31 degrees. I will be dropping the charge to 9.3gr for the next batch. I hope that works. what bullet and what OAL? Elevation too please. - 220gr SMK - OAL 2.14" - Elevation @ 600 ft |
|
|
|
Posted: 1/15/2015 3:56:03 AM EDT
[#31]
Quote HistoryQuoted: The sub-sonic issue is still unresolved. I dropped the charge to 9.6gr of IMR4227 and tested the setup today. 40 rounds fired and virtually the same result. Majority of rounds went super. I don't know how much of a factor this is but, the temperature was 31 degrees. I will be dropping the charge to 9.3gr for the next batch. I hope that works. -Millbarge
|
|
|
|
Posted: 1/15/2015 4:25:33 AM EDT
[#32]
Quote HistoryQuoted:
That's a lot of lead to throw down-range to come out with bad results. Load 10 rounds per set, dropping 0.2 grains per set. You should find your charge weight on the first trip to the range and possibly the minimum charge weight needed to cycle your action. -Millbarge Quote HistoryQuoted:
Quoted:
The sub-sonic issue is still unresolved. I dropped the charge to 9.6gr of IMR4227 and tested the setup today. 40 rounds fired and virtually the same result. Majority of rounds went super. I don't know how much of a factor this is but, the temperature was 31 degrees. I will be dropping the charge to 9.3gr for the next batch. I hope that works. -Millbarge I need a large enough sample to establish statistical significance. Additionally, shooting hard boiled eggs is fun 
|
|
|
|
Posted: 1/15/2015 10:15:04 AM EDT
[#33]
Quote HistoryQuoted:
If that is the case, I had better get one. Quote HistoryQuoted:
Quoted:
Without a chronograph it is really hard to do this by ear only. You can get by, but I tried that and ended up being around 850fps when I would have sworn I was close to 1000fps. If that is the case, I had better get one. I did this with a new cast bullet and my chronograph was getting repaired. My accuracy was great and the results I had in wet pack was ok.. I killed 2 deer with it before my chronograph got fixed. I was shocked to say the least. And a little embarrassed. But I did prove that a white tail can be taken down very effectively with much less then a 1000 ft lbs of energy. |
|
|
|
Posted: 1/15/2015 11:40:07 AM EDT
[#34]
Quote HistoryQuoted:
- 220gr SMK - OAL 2.14" - Elevation @ 600 ft Quote HistoryQuoted:
Quoted:
Quoted:
The sub-sonic issue is still unresolved. I dropped the charge to 9.6gr of IMR4227 and tested the setup today. 40 rounds fired and virtually the same result. Majority of rounds went super. I don't know how much of a factor this is but, the temperature was 31 degrees. I will be dropping the charge to 9.3gr for the next batch. I hope that works. what bullet and what OAL? Elevation too please. - 220gr SMK - OAL 2.14" - Elevation @ 600 ft Ill run it through Quick load tonight.. |
|
|
|
Posted: 1/15/2015 10:13:02 PM EDT
[#35]
Quote HistoryQuoted:
I did this with a new cast bullet and my chronograph was getting repaired. My accuracy was great and the results I had in wet pack was ok.. I killed 2 deer with it before my chronograph got fixed. I was shocked to say the least. And a little embarrassed. But I did prove that a white tail can be taken down very effectively with much less then a 1000 ft lbs of energy. Quote HistoryQuoted:
Quoted:
Quoted:
Without a chronograph it is really hard to do this by ear only. You can get by, but I tried that and ended up being around 850fps when I would have sworn I was close to 1000fps. If that is the case, I had better get one. I did this with a new cast bullet and my chronograph was getting repaired. My accuracy was great and the results I had in wet pack was ok.. I killed 2 deer with it before my chronograph got fixed. I was shocked to say the least. And a little embarrassed. But I did prove that a white tail can be taken down very effectively with much less then a 1000 ft lbs of energy. Shot placement and penetration. Everything else is gravy. |
|
|
|
Posted: 1/16/2015 2:19:04 AM EDT
[#36]
ok go with 9grs of 4227 that should give you about a calculated 1036 Fps out of a 10.3 inch barrel..
|
|
|
|
Posted: 1/16/2015 6:31:51 AM EDT
[#37]
Quote HistoryQuoted:
Shot placement and penetration. Everything else is gravy. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
Without a chronograph it is really hard to do this by ear only. You can get by, but I tried that and ended up being around 850fps when I would have sworn I was close to 1000fps. If that is the case, I had better get one. I did this with a new cast bullet and my chronograph was getting repaired. My accuracy was great and the results I had in wet pack was ok.. I killed 2 deer with it before my chronograph got fixed. I was shocked to say the least. And a little embarrassed. But I did prove that a white tail can be taken down very effectively with much less then a 1000 ft lbs of energy. Shot placement and penetration. Everything else is gravy. Very true and I preach shot placement over anything. Followed by bullet construction, both of the kills while successful showed me that the particular bullet I was using was not optimal. I since upped my game with good bullets of proper design to get effective blood letting on white tails
|
|
|
|
Posted: 1/16/2015 8:57:18 AM EDT
[#38]
Quote HistoryQuoted:
ok go with 9grs of 4227 that should give you about a calculated 1036 Fps out of a 10.3 inch barrel.. I will do that. Lets hope it cycles. Thank you. ETA: The rounds are reliably sub-sonic at 9.1gr. The weapon does NOT cycle reliably with reliable subs <sigh> 60% failure to fully cycle. |
|
|
|
Posted: 1/16/2015 3:57:40 PM EDT
[#39]
Switching from an M-16 Carrier to an AR-15 Carrier (weight reduction) has me at 80% reliability with 9.1gr.
I am so close !!! |
|
|
|
Posted: 1/16/2015 4:03:21 PM EDT
[#40]
I played with 4227 when i had zero 1680.
Very frustrating, would not cycle, going trans-sonic, pressure signs? I gave up. Now i have 8 lbs of a powder I probably will not use. 1680 just plain works. |
|
|
|
Posted: 1/16/2015 4:07:20 PM EDT
[#41]
Quote HistoryQuoted:
I played with 4227 when i had zero 1680. Very frustrating, would not cycle, going trans-sonic, pressure signs? I gave up. Now i have 8 lbs of a powder I probably will not use. 1680 just plain works. I have exactly the same issues, minus pressure signs. It doesn't help that Hogdon's website has an absolute bullshit recipe. They list 10.5gr as being sub-sonic @1044fps. I know for a fact, this powder goes trans @ 9.3gr. ETA: I have been scouring all the local outlets for 1680 for a solid year. There is none to be had 
|
|
|
|
Posted: 1/16/2015 5:22:23 PM EDT
[#42]
Quote HistoryQuoted:
I have exactly the same issues, minus pressure signs. It doesn't help that Hogdon's website has an absolute bullshit recipe. They list 10.5gr as being sub-sonic @1044fps. I know for a fact, this powder goes trans @ 9.3gr. ETA: I have been scouring all the local outlets for 1680 for a solid year. There is none to be had Quote HistoryQuoted:
Quoted:
I played with 4227 when i had zero 1680. Very frustrating, would not cycle, going trans-sonic, pressure signs? I gave up. Now i have 8 lbs of a powder I probably will not use. 1680 just plain works. I have exactly the same issues, minus pressure signs. It doesn't help that Hogdon's website has an absolute bullshit recipe. They list 10.5gr as being sub-sonic @1044fps. I know for a fact, this powder goes trans @ 9.3gr. ETA: I have been scouring all the local outlets for 1680 for a solid year. There is none to be had you ready to give Uncle Fat a Hug? Go to Thundirbird Cartridges. Order a jug of T680. then give me a big hug..
no shit thats exzactaly what you think it is.. |
|
|
|
Posted: 1/16/2015 5:53:10 PM EDT
[#43]
Quote HistoryQuoted:
you ready to give Uncle Fat a Hug? Go to Thundirbird Cartridges. Order a jug of T680. then give me a big hug..
no shit thats exzactaly what you think it is.. Quote HistoryQuoted:
Quoted:
Quoted:
I played with 4227 when i had zero 1680. Very frustrating, would not cycle, going trans-sonic, pressure signs? I gave up. Now i have 8 lbs of a powder I probably will not use. 1680 just plain works. I have exactly the same issues, minus pressure signs. It doesn't help that Hogdon's website has an absolute bullshit recipe. They list 10.5gr as being sub-sonic @1044fps. I know for a fact, this powder goes trans @ 9.3gr. ETA: I have been scouring all the local outlets for 1680 for a solid year. There is none to be had you ready to give Uncle Fat a Hug? Go to Thundirbird Cartridges. Order a jug of T680. then give me a big hug..
no shit thats exzactaly what you think it is.. Im a little dense, help me out. Are you saying I can use this powder in place of A1680? If not a direct recipe replacement, I need work up charts. |
|
|
|
Posted: 1/16/2015 7:06:09 PM EDT
[#44]
Quote HistoryQuoted:
Im a little dense, help me out. Are you saying I can use this powder in place of A1680? If not a direct recipe replacement, I need work up charts. its A1680 pull downs..  yes you can use one for one with A1680.. 10.5grs with a 220gr..
now where is my hug.. 
just keep it on the low down.. since they have it in stock and i want to get another 8lbs before it runs out.. 
|
|
|
|
Posted: 1/16/2015 7:38:26 PM EDT
[#45]
Quote HistoryQuoted:
its A1680 pull downs.. yes you can use one for one with A1680.. 10.5grs with a 220gr..
now where is my hug..
just keep it on the low down.. since they have it in stock and i want to get another 8lbs before it runs out.. Quote HistoryQuoted:
Quoted:
Im a little dense, help me out. Are you saying I can use this powder in place of A1680? If not a direct recipe replacement, I need work up charts. its A1680 pull downs.. yes you can use one for one with A1680.. 10.5grs with a 220gr..
now where is my hug..
just keep it on the low down.. since they have it in stock and i want to get another 8lbs before it runs out.. Huggy huggy Thanks Fats. My lips are sealed. ETA: Checkout is broken. I'll try again tomorrow. <sigh> |
|
|
|
Posted: 1/16/2015 8:51:55 PM EDT
[#46]
Quote HistoryQuoted:
Huggy huggy Thanks Fats. My lips are sealed. ETA: Checkout is broken. I'll try again tomorrow. <sigh> call it in they are having issues with the website.. |
|
|
|
Posted: 1/17/2015 1:50:23 AM EDT
[#47]
Quote HistoryQuoted: call it in they are having issues with the website.. Quote HistoryQuoted: Quoted: Huggy huggy Thanks Fats. My lips are sealed. ETA: Checkout is broken. I'll try again tomorrow. <sigh> call it in they are having issues with the website.. My jug showed up a few weeks ago. Been looking for AA1680 for over a year with no luck. Today, I walk into my favorite LGS and what do I see? 10 lbs of AA1680 on the shelf for $25/pound |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
