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Posted: 6/26/2016 3:03:23 PM EDT
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Any input on loading to get minimum sound suppressed?
Specifically for 44 with a 16inch barrel. I have been using magnum brass but have special brass now as well. I've been using bullseye and 240/300 gr bullets loaded just below the sonic boom. Would lighter bullets help(less pressure to get the same velocity)? Would loading to unusually low velocity(800 fps?) help? Would a different powder help? Thinking about getting some 180gr bullets and loading them very slow, like 700-800fps. Worth trying? |
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I'm fixing to start trying out loading some subsonic .300 Blackout myself.
under 1100 FPS typically keeps it subsonic. That sonic crack is one of the loudest parts. Most handgun and rifle subsonic loads I see are using heavier weight bullets but all I know is what I see in the loading manuals etc.. |
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Quoted: I'm fixing to start trying out loading some subsonic .300 Blackout myself. under 1100 FPS typically keeps it subsonic. That sonic crack is one of the loudest parts. Most handgun and rifle subsonic loads I see are using heavier weight bullets but all I know is what I see in the loading manuals etc.. |
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Quoted:
For Blackout subs, 200 gr coated cast bullets and 10.3 gr IMR4227 in my 8 in barrel. Quoted:
Quoted:
I'm fixing to start trying out loading some subsonic .300 Blackout myself. under 1100 FPS typically keeps it subsonic. That sonic crack is one of the loudest parts. Most handgun and rifle subsonic loads I see are using heavier weight bullets but all I know is what I see in the loading manuals etc.. Good to know. My local place has some 4227. I just picked up some Hornady 225 grain and some Accurate 1680. What coated bullets have you been buying? Sorry, minor hijack |
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article on Trailboss
Here's a brief article on it that says it was made for "low velocity" lead cast bullets. Beyond that I don't know.. I'm surprised someone more sciency hasn't popped in to give a more technical answer for you. But like I said 1100 fps is more or less the magic number. I didn't notice one subsonic load being louder than the other in the couple different brands I've tried and they all had a couple hundred fps average differences. Whatever you end up doing just be careful about loading something so light you get a squib. |
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One reason Trailboss is very nice for loading subs in a manually operated firearm is that it is a very fluffy powder that gives a good fill ratio, theoretically leading to more consistent burn and velocity.
I use it in subsonic .308 for a bolt gun and I can get below 1000fps while still having a nearly full case of powder. |
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Quoted:
Any input on loading to get minimum sound suppressed? Specifically for 44 with a 16inch barrel. I have been using magnum brass but have special brass now as well. I've been using bullseye and 240/300 gr bullets loaded just below the sonic boom. Would lighter bullets help(less pressure to get the same velocity)? Would loading to unusually low velocity(800 fps?) help? Would a different powder help? Thinking about getting some 180gr bullets and loading them very slow, like 700-800fps. Worth trying? Eh - I'd probably load slow, heavy bullets. Just me, but I would want a heavy bullet that stayed within the normal velocity range, probably better accuracy powder burn, cleaner cases etc. I think you'd be better doing that than a light bullet loaded abnormally slow. |
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the idea behind most people using heavy bullets is to maximize energy upon impact, not to say a light weight bullet wont still punch holes in paper.
like said above, the reason a lot of folks use Trialboss as a goto powder, is because of case filling volume. Trailboss is a "big" powder so it doesn't take much to fill a case. pic of Trialboss under scope i think i use somewhere around 5.? grains for 300 blackout for 125Gr projectiles and it fills the case very well. back when powder was harder to come by, i experimented with some "Lil gun and while it would run them under the radar, the powder seemed like a drop in an ocean. pic of 'Lil gun while i never had any issues with it, i just didn't like the risk of secondary ignition. a while later i ran into some 1680 and 4227 and gave them a full work down, while the 4227 was harder to throw, it did seem to be a tad bit quieter than the 1680 and my gun seemed to shoot better with it. i continued to use the 4227 for the rest of that winter and took many of critters with it. i happened to stumble on some Trailboss, and being a hand loader, i couldn't help but give it a try just to see what all the hype was about. i have fully switched over to it for all sub sonic uses just because it meters better for me than the 4227. i will note that it does seem to leave behind a oily type film on the baffles of my suppressors and seems to have a bit of smoke to it, but the oily film doesn't have much time to build up as i run the same can on my blackout as i do my 22-250 so it's a self solving problem. as others have said, start at the MAX load of your powder/bullet combo and work down, having too little of pressure is just as dangerous as too much. most importantly though, don't be afraid to grab a couple of different powders and experiment to see what works for you and your gun. |
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