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Third, I often hit paper and steel without any issue at 100-200 yards using 22lr so if this is your definition of accuracy then I maintain any caliber will do. Twist, head space, brass, bedding and profile are a few more but certainly not an exhaustive list. Second, bullet mass, diameter and "shape" are BC so that's one variable. Since speed is more or less fixed, the 3 variables I see are bullet diameter, mass, and shape/BC.įirst, accuracy is defined as precision, not distance or caliber. I think this is especially true at longer distances, which for subsonic speeds I'm calling 100-200 yards. I disagree that all calibers have equal potential. Just randomly thinking that maybe the pistol calibers might be more efficient at subsonic speeds, which would be cool because a 9mm bolt gun that is stupid quiet, cheaper to shoot, and more accurate than anything else would be all right with me. Commercial jets are rounded cylinders because that is the most efficient shape at subsonic speeds, while fighter jets are angular and thin because this is the most efficient shape at super sonic speeds. I also seem to remember a college physics class that explained the different shapes of airplanes. Makes sense that the highest bc bullet wins. I don't have enough practical experience or the equations to know which combination of these will produce the best results. Since speed is more or less fixed, the 3 variables I see are bullet diameter, mass, and shape/BC. It's more or less the same way I wouldn't expect a 9mm to match a 50 cal at 1000 yards. Granted I haven't reloaded for it, but I don't think my 22 will ever be able to match my 300 blackout at these distances because of the limitations of the caliber. Second of all, although I agree with your sentiment about load development being the best way to squeeze accuracy out of any firearm, I disagree that all calibers have equal potential. It's also a pretty good reminder that a lot of firearms are significantly more accurate than the shooter operating them. I'd also like to rule out price of ammunition as a deciding factor, as I'm sure we can probably all agree that for the most part 22<9mm<45<300.įirst of all, I'm embarrassed that I've never heard of that guy. I'd like to say this is for distances 100-200 yards I'd like to go farther than that, but I'd be very surprised if that were practical at subsonic speeds. My personal requirements are for punching paper and shooting steel, so terminal characteristics are not important at all. Are these the best results I can hope for with the limitation of staying subsonic ? My ruger 22 shoots ragged holes at 50, and the h&r 300 groups decently at 100. Physics is nice and everything, but sometimes real world results may vary. The second part of my question is for anyone who has any practical experience comparing the different calibers.
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458, or some other caliber I haven't thought of ? Do heavier rounds fly farther or fall faster ? Do bullets with higher coefficients fly farther at subsonic speeds, or do more rounded bullets fly farther and straighter? Assuming all other things are equal (similar barrel lengths, actions, barrel quality, etc) which will be the most accurate at subsonic speeds: 22lr, 9mm, 45 acp, 300 blkout, subsonic 338, subsonic. My question is: what is the most accurate subsonic caliber ? I've looked all over for this information, and I've never seen this exact question asked. I'm looking to build my next host (the host to end all hosts), and have a lot of options for calibers with the cans I've got. I'm not bragging, just saying I'm no slouch when it comes to suppressors. I'm also waiting for my form to come back for the sig 30 cal can. 458 can, a 300 blkout H&R, and I'm waiting for my Form 1 to SBR my UMP/USC conversion. Right now, I've got a 96/22 with silencerco sparrow, a marlin 45/70 with lane silencers. Let me start off by saying I've been reading these forums for years, and have used the information to build a nice little collection for myself.