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Posted: 8/9/2020 10:29:01 AM EDT
[#1]
I have in the past... I "ladder load" and test in that specific gun till I find its node just barely showing pressure signs. Replicating Nato loads is also a place to start.
My go to powder for this is Power Pistol. Great accuracy and good speeds. |
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Posted: 8/9/2020 10:41:47 AM EDT
[#2]
I don't own a 9mm carbine, but I'd look towards the slower burning powders, like BLUE DOT
that might give you higher velocities sounds like a fun thing to explore . |
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Posted: 8/9/2020 12:13:35 PM EDT
[#3]
Started playing around in quickload. It listed power pistol at the top of the list for the most velocity. Never used any of it before. Accurate No 7 was 2nd in line. Never used it either. Both look like I should be able to get around 1500 fps.
Unique is not far down on the list. I have a couple pounds of that. I have not done a ton of 9mm loading in the past. What I have loaded has been a mix of either W231 or unique. |
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Posted: 8/9/2020 2:26:32 PM EDT
[#4]
I use #7 with 147gr Hi-tek coated bullet and get 1000fps from 4.7" barrel ( BHP ). Been shooting this combo for over 20 years. I've also shot these through friend's 9mm carbines in the past and they functioned fine. It was a long time ago and didn't chrono anything back then.
I've been waiting for a CMMG RDB barrel/bolt to come back in stock. Every time I get a notification, they are out of stock again by the time I see the email.  I have some Middle Eastern 158gr factory loads that a friend gave me because they were too hot for his pistols. Imagine they are UZI rounds. I'm dying to try them whenever I get a carbine setup. |
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Posted: 8/9/2020 2:50:39 PM EDT
[#5]
I have three 9mm pistols one AR9 carbine, and 3 AR9 pistols. Lots of fun.
 First time out with the first AR9 all I had was pistol ammo I had already loaded. Worked great. What ever shoots good in pistols fires fine in AR9's regardless of barrel length. I love me some True Blue in 9mm. But I have over 30 lbs of Power Pistol to use up first. So the load I settled on for AR9's is 6.0 grs Power Pistol (6.7 grs max Lyman 49) with either a plated 115 gr RN or my cast powder coated 120 gr truncated cone. OAL 1.075. I load my 9mm to work in any of my 9's so OAL is set for shortest chamber, CZ 85 in my case. Which works in all my 9's. Any SP primer and I use range brass, So I gauge every round. Normally find 6-8 rounds that don't gauge per 1k batch. Never tried a rifle primer in 9mm, as I have a supply of SP primers. My shooting buddies know I'm the mod here so I can't have my ammo not work. So function is very important to me and I don't get any heckling that way.  Buddies can be cruel like that. 
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Posted: 8/9/2020 4:38:49 PM EDT
[#6]
I shoot USPSA PCC division and 2x4 division in 3-Gun.
Generally, my load is a 124gr at 1,100fps. However, there are times I have long shots or need power at 150-200 yards. Then, it’s a 124 or 147 with max load of AA#7. You’re still not picking up a lot of velocity with a 16” barrel. The sweet spot is 10”-12”. My race guns are 10” barrels with 6” of comp. |
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Posted: 8/9/2020 5:18:41 PM EDT
[#7]
Mine feed from the same trough as my pistols.
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Posted: 8/9/2020 5:40:43 PM EDT
[#8]
like dryflash3 said.. What you have in your 9mm pistol loads..
I use true blue 5.6 grains over a 135gr blue bullet or 124gr X-Treme rn or tcn no issues at all |
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Posted: 8/9/2020 9:32:52 PM EDT
[#9]
The fun ones to shoot out of a carbine are the 380 95-100 grainers at 1500+fps. I use a slower powder, just because I found a bunch and you can't double charge it. The 16" barrel seems to add about 200fps pretty consistently.
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Posted: 8/9/2020 11:32:17 PM EDT
[#10]
Quote HistoryQuoted: The fun ones to shoot out of a carbine are the 380 95-100 grainers at 1500+fps. I use a slower powder, just because I found a bunch and you can't double charge it. The 16" barrel seems to add about 200fps pretty consistently.  Hmmm, just happen to have some of those PC'd. Blue Dot? I know that *8.0 grs Blue Dot with a 115 gr XTP is a hell of a load. *compressed charge, not for the timid, and Yaa work up to it. |
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Posted: 8/10/2020 7:49:25 AM EDT
[#11]
I do have some berrys 90gr round nose bullets. I may try those as well.
Trying to decide between power pistol and AA No 7. Maybe I should just get a pound of both and see how they do. |
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Posted: 8/10/2020 8:20:59 AM EDT
[#12]
I’m using 124gr FMJ round nose with 4.1 grains of Titegroup in all my handguns and PCC’s. So far they’ve run fine.
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Posted: 8/10/2020 8:50:35 AM EDT
[#13]
I’ve loaded some 9mm for a 16” carbine. I wanted to see how much faster the extra 12” of barrel added.
I used Power Pistol for my experiment and chronographed them thru a G17 and also a 16” PCC. Using 124 FMJ with two different charges of Power Pistol I got the following results. With 5.7 grains I got 1085 FPS in the Glock and 1395 FPS with the PCC. 5.9 grains yielded 1105 FPS in the Glock and 1420 FPS with the PCC. So the extra 12” or so of barrel length gave an extra 300+ FPS. Power Pistol is definitely a good powder for longer barrels if you’re looking for some speed. |
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Posted: 8/10/2020 10:10:11 AM EDT
[#14]
What about going the other way. Can you keep a 9mm 147 grain subsonic or is the additional barrel length on a carbine going to make that difficult?
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Posted: 8/10/2020 10:40:26 AM EDT
[#15]
I have 2 or 3 different loads for 147s that are definitely subsonic out of a 16” barrel. I believe the key is to use faster powders for the subsonic loads.
I’ve used 700x, Unique and a shotgun powder by Rio. The Rio powder is CSB1 and showed up during the great powder shortage after Sandy Hook. All of these powders gave me subsonic loads ranging from 825 FPS with 700x to 975 FPS using 4.0 grains of Unique. I could probably bump the Unique up closer to the Alliant posted max of 4.3 grains. The CSB1 load is the one I have used the most and it is very quiet on a suppressed 16” PCC. It’s great fun too shoot it at 100 yard steel plates. They is a perceptible delay between the quiet report from the gun and the clang if the steel. |
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Posted: 8/10/2020 4:44:50 PM EDT
[#16]
Only thing I have to add is that some HOT pistol loads had issues with piercing primers in a 16” AR9.
Maybe anecdotal, but it seemed like I hit max pressure faster when doing ladders too |
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Posted: 8/10/2020 4:49:57 PM EDT
[#17]
I load for several 9mm carbines. Keep it simple-the same loads that work in your pistol, will work in your carbine depending on your buffer/spring set up.
My simple load that works in everything well. 4.0 grains of WSF and the 147 FMJ of your choice. AA#7 was made for the Uzi. Not my favorite powder but it will work well in longer barrels. |
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Posted: 8/11/2020 1:17:39 PM EDT
[#18]
Use a Lee FCD to prevent bullet setback on the feed ramp. Case wall thickness can vary, and Winchester cases were the ones I had an issue with.
Powder manufacturer max loads tend to be conservative. Still a good idea to work up, but I am at max with Win 231 and 124gr projectiles. I use Autocomp for 147 grain loads. RMR bullets are some of the best. I use a RRA Colt pattern 10.5" SBR with Metalform mags. Previously I used an Olympic Arms 9mm SBR with Sten mags. |
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Posted: 8/12/2020 9:57:25 PM EDT
[#19]
be-86 would also be on my list. Burn rate between Unique and Power Pistol. I have a lb sitting around waiting for a date with some 124 gr Gold Dots. Lots of good choices listed.
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Posted: 8/13/2020 2:07:34 PM EDT
[#20]
Quote HistoryQuoted: be-86 would also be on my list. Burn rate between Unique and Power Pistol. I have a lb sitting around waiting for a date with some 124 gr Gold Dots. Lots of good choices listed. I used a max load of BE86 with cci sp and prediction delta 115 gr fmj. Close to 1250 fps in my glock 17 and at 1400 fps out of a 10" uzi barrel. Probably should not run max all the time but it was also a very accurate load for my glock. Loaded 1k. The rest of the Be86 I have is going to full power 10mm 180gr loads which are also very accurate. |
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Posted: 8/13/2020 4:08:13 PM EDT
[#21]
I think Spear and Hornaday books both have a note about not using 147gr bullets in blow back carbines.
I'm not trying to be the safety sheriff here but I haven't seen any discussion on this before. Maybe you guys have a better understanding of it or a link perhaps to a discussion on it. |
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Posted: 8/13/2020 4:21:36 PM EDT
[#22]
Quote HistoryQuoted:
I think Spear and Hornaday books both have a note about not using 147gr bullets in blow back carbines. I'm not trying to be the safety sheriff here but I haven't seen any discussion on this before. Maybe you guys have a better understanding of it or a link perhaps to a discussion on it. |
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Posted: 8/13/2020 6:00:07 PM EDT
[#23]
Get some of these if you're going to load +p++
 Shell Shock 9mm Casings +P+ Torture Test |
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Posted: 8/13/2020 7:58:19 PM EDT
[#24]
Quote HistoryQuoted: I think Spear and Hornaday books both have a note about not using 147gr bullets in blow back carbines. I'm not trying to be the safety sheriff here but I haven't seen any discussion on this before. Maybe you guys have a better understanding of it or a link perhaps to a discussion on it. The carbine I am using is a roller delayed blowback. (almost just like a MP5). The company actually recommends hotter ammo, as lower powered stuff will not properly cycle it. I put that to the test over the weekend and it chokes on independence aluminum. |
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Posted: 8/13/2020 8:57:37 PM EDT
[#25]
Quote HistoryQuoted: The carbine I am using is a roller delayed blowback. (almost just like a MP5). The company actually recommends hotter ammo, as lower powered stuff will not properly cycle it. I put that to the test over the weekend and it chokes on independence aluminum. I just read up on how that works, neat. Looks like it eliminates the conditions that the reloading books warn about. |
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Posted: 8/13/2020 9:33:01 PM EDT
[#26]
Quote HistoryQuoted: I think Spear and Hornaday books both have a note about not using 147gr bullets in blow back carbines. I'm not trying to be the safety sheriff here but I haven't seen any discussion on this before. Maybe you guys have a better understanding of it or a link perhaps to a discussion on it. God I hope not. https://www.ar15.com/forums/ar-15/-/16-712312/?page=1&anc=7429025#i7429025 Would VV 3n38 be a decent choice ? |
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Posted: 8/13/2020 10:34:37 PM EDT
[#27]
Quote HistoryQuoted: God I hope not. https://www.ar15.com/forums/ar-15/-/16-712312/?page=1&anc=7429025#i7429025 Would VV 3n38 be a decent choice ? Quote HistoryQuoted: Quoted: I think Spear and Hornaday books both have a note about not using 147gr bullets in blow back carbines. I'm not trying to be the safety sheriff here but I haven't seen any discussion on this before. Maybe you guys have a better understanding of it or a link perhaps to a discussion on it. God I hope not. https://www.ar15.com/forums/ar-15/-/16-712312/?page=1&anc=7429025#i7429025 Would VV 3n38 be a decent choice ? It's written in the Spear manual #14, in the handgun loading data front matter. Something about heavier bullets give less case capacity and higher pressure can open the blow back type bolt too early. Your tests you linked didn't have any trouble with it so IDK what to think, just wanted to put it out there for anyone interested. Mine is a Colt 9mm carbine and I decided against using the heavy bullets in it. Which kinda sucks because I have 500 147gr bullets under the bench and my 2 glocks are having trouble with them but my kimber eats em up
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Posted: 8/14/2020 8:50:23 AM EDT
[#28]
Quote HistoryQuoted: Only thing I have to add is that some HOT pistol loads had issues with piercing primers in a 16” AR9. Maybe anecdotal, but it seemed like I hit max pressure faster when doing ladders too That’s strange because high pressure doesn’t manifest itself with pierced primers in a block back operated firearm. |
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Posted: 8/14/2020 10:00:52 AM EDT
[#29]
Quote HistoryQuoted: I do have some berrys 90gr round nose bullets. I may try those as well. Trying to decide between power pistol and AA No 7. Maybe I should just get a pound of both and see how they do. Be careful with max velocity on those. Most plated bullets have a velocity ceiling on 1,250 or so. |
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Posted: 8/14/2020 10:03:03 AM EDT
[#30]
Quote HistoryQuoted: I think Spear and Hornaday books both have a note about not using 147gr bullets in blow back carbines. I'm not trying to be the safety sheriff here but I haven't seen any discussion on this before. Maybe you guys have a better understanding of it or a link perhaps to a discussion on it. I’ve literally burned tens of thousands of 147’s in carbines. Zero issues. |
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