cecil Posted March 4, 2017 Share Posted March 4, 2017 Just started shooting a 9mm blowback carbine - Stag arms LH ..... I need to buy some powder for using 124gr bullets that will burn clean... I am presently using 5.0 gr Auto Comp which I find very dirty... and it sends the brass into the next zip code.. anyone have any suggestions of which powder & what load would be appreciated.. thanks Link to comment
Aircooled6racer Posted March 4, 2017 Share Posted March 4, 2017 Hello: Blowback guns run dirty, so there is really no super clean powder to use. I like a powder that wipes off easily and leaves little residue. So far I have used Winchester Super Target, Tite Group, N320, HP-38 and Universal Clays. So far I think Universal Clays is the cleanest with Tite Group a close second. I would use Tite Group at 3.1 grains to start. Check with a chrono to see your power factor. Thanks, Eric Link to comment
gatortommy Posted March 4, 2017 Share Posted March 4, 2017 Stick with the faster powders. Autocomp is relatively slow and you end up with lots of unburnt powder residue. I don't think I'd use anything slower than Unique. I've had good luck with HP-38, Bullseye, and Unique. You'll probably end up 2.5 to 3.5 grains. I've attached a burn rate chart. Burn Rates_121211.pdf Link to comment
aandabooks Posted March 4, 2017 Share Posted March 4, 2017 AA#2.. 3.2gr under a 125gr S&S NLG. Link to comment
vinconco Posted March 4, 2017 Share Posted March 4, 2017 I just came into 25# of IMR 4756. 6.0 gr 124 coated works fine. Clean burn too Link to comment
XD Niner Posted March 5, 2017 Share Posted March 5, 2017 (edited) I too just bought a PCC (PSA AR-9). Today I chrono'd the rounds that I normally shoot in my 5.25-inch XDM in Carry Optics and Production. Those use 124 grain MG CMJ's and 4.8 grains of CFE Pistol or Autocomp because I've found that for me the two to provide equal performance at the same loading. In my XDM, they provide a 130 PF. With the 16-inch PCC, they averaged a 147 PF. If you are using 5.0 grains of Autocomp and 124 grain bullets I suspect you're getting a PF of over 150. Have you chrono'd your rounds to see what they are really doing? I made up a batch of rounds for the PCC this evening. The OAL is 1.10 with a 124 grain MG CMJ and 4.5 grains of CFE Pistol. I'll chrono those in a couple of days and adjust from there. My goal is to get a load that provides a minimum 130 PF, reliably cycles the rifle and is as soft shooting as possible. Edited March 5, 2017 by XD Niner Link to comment
Skeeter190 Posted March 5, 2017 Share Posted March 5, 2017 I have settled on 4.2gr or Autocomp with a 124gr Precision Delta for a pf of 131. The pcc has been dirty with every powder i have tried so far. Link to comment
Les Snyder Posted March 5, 2017 Share Posted March 5, 2017 I've always had good results with the cooler burning Winchester ball process powders in lead pistol calibers... doesn't tend to burn the base of the bullet... when I switched to 9mm from .45 I switched to Win Super Field, and use a compromise loading for the PCC as well as the G34... 3.6 WSF and a 135 Bayou coated gives me 128pf for the G34 and 148pf for the PCC...I perceive the coated base of the Bayou gives slightly less leading in the comp than the 147 open base Precision Delta did...the "dirty" is really a grease like coating, and not any un burned propellant... YMMV Link to comment
Old3GNR Posted March 5, 2017 Share Posted March 5, 2017 I just received my new JP GMR-13 and tried my 9mm pistol load which is a 124 FMJ RN over 4.2 Tite-Group. This ran 1200 fps, 148 PF. I'm trying a new batch @ 3.5 grs. Link to comment
Aircooled6racer Posted March 5, 2017 Share Posted March 5, 2017 Hello: Try some at 3.2 grains of Tite Group at 1.145" OAL. That one will be a sweet load in that PCC. Thanks, Eric Link to comment
Bamboo Posted March 5, 2017 Share Posted March 5, 2017 17 hours ago, vinconco said: I just came into 25# of IMR 4756. 6.0 gr 124 coated works fine. Clean burn too That is some great powder for 38 super w/124gr bullets at major. If you wanted some faster powders to try in your pcc you may be able to find a local open shooter and trade some of the SR4756 for a cleaner powder. (if you are in the Central Florida area, i would). I've had really good luck with American Select and Vectan GM3 - both burn cool and leave the PCC very clean with no junk or chunks. Just a little light soot that is hardly noticeable and wipes away easily. Shot a steel match yesterday with 125 grainers loaded with the last of some ww231 I had. WW231 is a great powder but the compensator, lower and bolt needs a good cleaning now. So, I am in the faster powder camp. Low NG content or single based preferred. Link to comment
Old3GNR Posted March 5, 2017 Share Posted March 5, 2017 3 hours ago, Old3GNR said: I just received my new JP GMR-13 and tried my 9mm pistol load which is a 124 FMJ RN over 4.2 Tite-Group. This ran 1200 fps, 148 PF. I'm trying a new batch @ 3.5 grs. I just chronoed the 3.5 gr load. It ran 1017 fps, 126 PF. 1.15" OAL, 14-1/2" barrel Link to comment
XD Niner Posted March 9, 2017 Share Posted March 9, 2017 (edited) I've settled, at least for the time being, on a 124 grain MG CMJ bullet over 4.3 grains of CFE Pistol at a 1.10 OAL for my PSA 16-inch AR-9. This produces a 133 PF. After 700 rounds, the lower was relatively clean but did have some soot. It cleaned up easily. More importantly, every round went "bang" and the accuracy is good. I'll probably try to reduce the charge a bit further to 4.1 grains which I suspect will give around a 128-130 PF. I know from personal experience that I can't feel the difference between a 130 and a 133 PF so I may just leave well enough alone. I don't want to go below a 130 PF. Edited March 9, 2017 by XD Niner Link to comment
Aircooled6racer Posted March 23, 2017 Share Posted March 23, 2017 Hello: I loaded up some 147's with 2.9 grains of Tite Group. They chronoed at 141-144PF and is cleaner burning than some of the other powders I have tried so far. This is a new batch of Tite Group I am using now. Going to load up some at 2.7 grains and see how they work out. Thanks, Eric Link to comment
1911luvr Posted March 24, 2017 Share Posted March 24, 2017 Hello: I loaded up some 147's with 2.9 grains of Tite Group. They chronoed at 141-144PF and is cleaner burning than some of the other powders I have tried so far. This is a new batch of Tite Group I am using now. Going to load up some at 2.7 grains and see how they work out. Thanks, EricI'd love to know how that works out, since that would give me an additional 400 rounds per pound over my TG load. Sent from my iPhone using Tapatalk Link to comment
jmcqueen Posted March 24, 2017 Share Posted March 24, 2017 (edited) Quote Edited March 24, 2017 by jmcqueen Link to comment
barrysuperhawk Posted March 25, 2017 Share Posted March 25, 2017 I am going to add a vote for Universal clays. I don't load minimum power puff loads, and the 124 load I use has enough gas to make the comp worth it, as well as being fairly clean. Link to comment
Aircooled6racer Posted March 25, 2017 Share Posted March 25, 2017 Hello: I chronoed some Tite Group again today. 57 degrees and cloudy. 2.7 grains Tite Group, 147 grain Acme bullet, 1.145" OAL, Federal small pistol primers and mixed headstamp brass out of a Wilson Arms 16" barrel. The average over 10 shots was 132.1PF. Brass still looked pretty clean and the gun ran perfectly. Dot recovery was good and so where my splits. I think this will be the powder I will be using now. I may bump it up 0.1 grains just to be sure for a major match and also check it again when it is warmer. Thanks, Eric Link to comment
CZ85Combat Posted March 25, 2017 Share Posted March 25, 2017 You want clean. try 2.5gn of N310 with a 147gn Blue Bullet 132pf Very clean and soft shooting. Link to comment
1911luvr Posted March 25, 2017 Share Posted March 25, 2017 Hello: I chronoed some Tite Group again today. 57 degrees and cloudy. 2.7 grains Tite Group, 147 grain Acme bullet, 1.145" OAL, Federal small pistol primers and mixed headstamp brass out of a Wilson Arms 16" barrel. The average over 10 shots was 132.1PF. Brass still looked pretty clean and the gun ran perfectly. Dot recovery was good and so where my splits. I think this will be the powder I will be using now. I may bump it up 0.1 grains just to be sure for a major match and also check it again when it is warmer. Thanks, EricHow do you like your Wilson Arms barrel? I just got mine back from my buddy who turned it down for menaced on your recommendation. Going to order a comp next and give it a go next weekend. Sent from my iPhone using Tapatalk Link to comment
Aircooled6racer Posted March 25, 2017 Share Posted March 25, 2017 Hello: I really like my Wilson Arms barrels. I actually have two now. I will shooting one today. They are easy to cleanup even with coated bullets. Wow, an old collet lathe. Looks like you got it looking nice and light now. Thanks, Eric Link to comment
Broncman Posted April 6, 2017 Share Posted April 6, 2017 I have been using Universal Clays because it has been very accurate in my XDM and meters very well. In my pistol I have tried, WSF, TiteGroup,231,Power Pistol, HS-6 and Autocomp. Keep coming back to Universal Clays. Do have some WSF loads to try today in the PCC Scorpion. How does fast vs slow powders in a carbine effect the recoil impulse? Link to comment
mdm3 Posted April 7, 2017 Share Posted April 7, 2017 I used AutoComp initially and like others I found I was getting too much unburnt powder I had to clean after shooting. Switching to Titegroup has resolved that for me. Link to comment
Aircooled6racer Posted April 24, 2017 Share Posted April 24, 2017 Hello: I shot area 6 this past weekend. Official chrono results using 2.9 grains Tite Group, Acme 147 grain bullet, Federal small pistol primers, mixed brass and an overall length of 1.145". Bullet weight was 146.9 grains, velocities 951,948,948 with and average of 949. This was shot out of a Wilson Arms 16" stainless barrel. Power factor was 139.5 at 78 degrees and about 900 feet above sea level. Looks like my normal 2.7-2.8 grain load would be good. Thanks, Eric Link to comment
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