Just curious if a 10.5 9mm upper will keep 147gr subsonic? Any thoughts or advice would be appreciated.
Suppressors 10.5 9mm upper keep subsonic?
- Thread starter ccannon121
- Start date
Re: 10.5 9mm upper keep subsonic?
chrony it, if it will stay 1150 fps (or lower due to temperature, humidity, and baro pressure) you should be GTG.
chrony it, if it will stay 1150 fps (or lower due to temperature, humidity, and baro pressure) you should be GTG.
Re: 10.5 9mm upper keep subsonic?
I think with a 10.5" upper using commercial 147gr loads you'll start getting intermittent sonic crack. I would chop the barrel back to 6". It should keep your mv below 1100 fps.
Regards,
IUD
I think with a 10.5" upper using commercial 147gr loads you'll start getting intermittent sonic crack. I would chop the barrel back to 6". It should keep your mv below 1100 fps.
Regards,
IUD
Re: 10.5 9mm upper keep subsonic?
My Issue Colt 10.5 9mm, with a can, using issue Win Black Talon, or the newer Ranger 147's was pretty snappy. Outdoors was workable, Indoors you needed plugs or something as it was disappointing loud.
My Issue Colt 10.5 9mm, with a can, using issue Win Black Talon, or the newer Ranger 147's was pretty snappy. Outdoors was workable, Indoors you needed plugs or something as it was disappointing loud.
Re: 10.5 9mm upper keep subsonic?
If you're loading your own, try using 158gr bullets for the 357 mag. They're the same diameter and you can load them for the longer barrel to keep them subsonic.
I'm not sure I believe that after 8" the bullets don't make any better velocity. I had a carbine mauser that I built into a 9mm bolt action (I was bored) and it would easily break 2000 fps with a 19" barrel and 124gr bullets.
If you're loading your own, try using 158gr bullets for the 357 mag. They're the same diameter and you can load them for the longer barrel to keep them subsonic.
I'm not sure I believe that after 8" the bullets don't make any better velocity. I had a carbine mauser that I built into a 9mm bolt action (I was bored) and it would easily break 2000 fps with a 19" barrel and 124gr bullets.
Re: 10.5 9mm upper keep subsonic?
more powder is better for longer barrels. I only looked at the 147s. I agree with the above I'd chop the barrel to be safe with comerical loads. Not sure I'd go to 6" though. Might as well get yourself a glock 34 and put a stock on it with 33rd mags.
more powder is better for longer barrels. I only looked at the 147s. I agree with the above I'd chop the barrel to be safe with comerical loads. Not sure I'd go to 6" though. Might as well get yourself a glock 34 and put a stock on it with 33rd mags.
Re: 10.5 9mm upper keep subsonic?
Win 147gr will go supersonic out of my suppressed Glock 17. I normally run my suppressed 9's with Atlanta Arms 147gr JHP. This is the Team Glock load and is used extensively in USPSA Production division. It's subsonic in everything I use and very quiet.
Win 147gr will go supersonic out of my suppressed Glock 17. I normally run my suppressed 9's with Atlanta Arms 147gr JHP. This is the Team Glock load and is used extensively in USPSA Production division. It's subsonic in everything I use and very quiet.
