5.56 subsonic ammo11/13/2022 ![]() 38 with Trail Boss and love how it works. Trail Boss (TB) was originally designed to work in cowboy action cartridges like. In this test I’ll be loading several bullet options from Hornady and I’ll be using the premier subsonic powder on the market: IMR Trail Boss Powder. The tighter twist rate enables the slow-moving bullets to gain a bit more gyroscopic stability in flight and this is a huge thing when we’re dealing with low pressures and short ranges. You are almost guaranteed a keyhole from a 1:12 bore. I’ve found that the 1:12 twist rate isn’t fast enough to stabilize most projectiles moving at subsonic speeds. 308/7.62 rifles and is in my opinion the most versatile twist rate available for any. The rifle I have has a 13.5” barrel with a 1:10 twist. In short, I’m using something that simply launches bullets in order to remove obstructions that could cause error. 308 in a bolt gun because it allows more linear testing without the variable of cycling pressure and gas bleed-off. 308 Win ammunition in a bolt action as my example as it is easily made subsonic and is a good cartridge to begin working with. 308 Win Handloadsįor this article I’ll be using. A Bolt Action Rifle was used for shooting Subsonic. You don’t want that to happen with an expensive suppressor attached. Again, seems like a no-brainer but I’ve seen many guys load subsonic that keyhole at 100 yards or less. The projectile must be able to stabilize in subsonic flight in order to be accurate. The second thing to concern yourself is one that often escapes people: bullet stability. Granted, you may pick up or lose some speed given external variables, but fear not as there isn’t that big of a difference in performance at the effective range of most subsonic cartridges. might be a project to try this weekend, just for curiosity's sake.As a result, I have found that a velocity of 1050fps at the muzzle is a nearly optimum speed for any condition range. So they will instinctively think the shot came from a direction 90 degrees away from where the shooter actually is.Ĭan't say first-hand though, as I've never gone downrange and let somebody shoot past me. Translated into English - the target's buddies will hear the sonic crack, and/or the bullet impacting the target, but the report of the shot itself will be almost completely suppressed. I suspect if the silencer eliminates the report from the muzzle its done its job regardless if the bullet is subsonic or not.įrom a "two-way range" perspective, my understanding is that a suppressed shot will be perceived at the target area as having originated 90 degrees from the actual shot. From what I've read some silencers increase velocity. #5.56 subsonic ammo crack#My question is if you hear/feel the crack of the shockwave of a supersonic bullet can you really tell where it came from? I'm speculating that bullet impact could tell you just as easy from what general direction fire is coming from. I'm guessing the purpose of a silencer is to hide your exact location and improve comfort for the shooter. IMHO, that would indicate that a subsonic. the round still killed after passing below sonic speeds. A bullet drop at 180 yards vs 200 yards will probably be substantial.Ĭarlos Hathcock took shots with supersonic. The hardest part will be calculating your ballistic table and finding the exact range you are firing from. I suspect a 200 yard, subsonic shot, is going to be wildly effective at pissing off your target. You figure out the bullet drop at 200 yards, and the amount of velocity loss from the drag of the round and calculate the remaining foot pounds of energy. Yes, how far away can you accurately shoot someone and expect it to be effective. 45 ACP should be easier to suppress and will be stable at subsonic speeds. ![]()
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