AMAX bullets for subsonic, and would like to try some of those. I've read some good stuff about using 208 gr. I want to get some 1680 also, for subsonic. of W296 (same as H110) after a visit with a fellow calgunner today. I went with H110, which I got from a calgunner.įunny, I ended up with 5 lbs. I also found that none of my powders worked (which took some explaining to the spouse since I came home from a Miwall sale recently with over 30 lbs of powder). You could just go with a dedicated 9mm pistol upper and be done. I how ever agree with the others that say why bother with that. Īgain just thinking out load here I have zero experience with pistol AR's but believe I have a good understanding how the platform works. It would likely need to be highly customized for just that purpose. My point is I think it could be done but your not likely going to get any old pistol upper to work. Start playing with different combo's of all the above and I'd think you'd get something to work. That should push more gas down the gas tube pushing the BCG harder. Try a 10" barrel with a 5" gas system giving you an extra inch of dwell time. Lets say your 10" barrel has a 6" gas system leaving you with 4" of dwell time. Not sure where the gas port is on a 8" or 10" barrel. I'm thinking there are many things you can do to make it work really. I'm thinking a heavy bullet 75gr or 77gr maybe 69gr and a very slow pistol powder may do the trick. Let me start by saying I really have NO idea but here is my thought on this. So far nobody has answered the question of whether a 223 can cycle with subsonic ammo reliably or not. This is why I'm asking about the 300 AAC. While the 9mm AR pistol may be the best option, it won't be the most inexpensive for me. In terms of subsonic, I was mostly curious about getting an AR pistol down to that level at least as it would get me under 1300 fps, and even that is high for a handgun. Handguns are obviously more practical for that, and arguably an AR pistol in 9mm may be the best option, but I would like a better round than 9mm. I'm more so trying to figure out a way to bring the FPS down to a more manageable level inside of a home, so there is less danger is penetrating walls and hitting someone in another room. Nothing to do with sound, as I can't have a suppressor anyway. May I ask why you want to want your home defense gun to be subsonic? Unless you're shooting with a suppressor, intentionally downloading your ammo has just about no possible benefits.
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