![]() That said, we have always come to expect nothing short of excellence from CCI ammo. This avoids the supersonic shockwave or 'crack' of a supersonic bullet, which, particularly for suppressed firearms, influences the loudness of the shot. Significantly more quite than the CCI Mini Mag and other high speed stuff. Subsonic ammunitions are ammunitions designed to operate at velocities below the speed of sound, which at standard conditions is 340.29 m/s (1,116.4 ft/s) or Mach 1. Semi -Quiets are like 100 fps more but still much lower than std. ![]() There was some nose deformation, but none of the bullets got any wider. And the Winchester 37-grain bullet did not expand. Penetration is deep at 14 inches, which is pretty much standard for high-velocity non-expanding bullets. I would be surprised if this would be enough to cycle any HS. The Winchester 37-grain HP exhibited good accuracy. The Quiets are very close to fps of CB Shorts although with a 40 gr. With solid hits squirrels and rabbits go down in place. CCI also has two flavors of subsonic at different fps, much lower than std. Kills are instantaneous with broadside chest shots out to 75 yards. This is my go to small game rimfire ammo in the North Idaho Panhandle. There is no fragmentation on impact so the full energy of the all lead hollow point distributes all its energy within small game. 1/4 to 1/2 inch 5 shot groups from the bench are the norm at 50 yards. is extremely accurate from my Ruger American Heavy Barrel bolt action rifle. The squirrels even have the nerve to tunnel into our chicken coup where they munch on my chickens feed. These ground dwelling demons destroy my wives vegetable and flower gardens if not kept under control. 22 Extra Long) use a heeled bullet, which means that the bullet is the same diameter as the case, and has a narrower "heel" portion that fits in the case.My 13 acre ranch comes under attack by legions of demon possessed ground squirrels just after the spring snow melt. 22 Long Rifle and related cartridges (.22 Short. Virtually every manufacturer of cartridge firearms makes at least one model chambering it, and this has been true for more than a century. 0.494 CCI Standard 0.496 Eley Subsonic HP 0.507 Eley Sport 0.512 Federal American Eagle 0.513 SK High Velocity 0.514 Eley Standard 0.516 Eley Tenex 0.516 Lapua Crow HP 0. For many decades, it has been a very popular cartridge around the world. 22LR rimfire ammo may work well in one gun and not another. 22 Long with the 40-grain (2.6 g) bullet of the. These tend to be in the 600fps to 900fps range. I only consider them 25 yard firearms and that is the distance I usually shoot them. 22LR Mares Legs like the Aguila HV shorts which shoot about the same speed as SV longs. The shorter the barrel the less difference in speed between the SV and HV is what Ive found. But are you talking about Standard Velocity Sub-Sonic, or are you specifically talking about Sub-Sonic Quiet Rounds. I think the barrel length also plays a big part. Stevens Arms & Tool Company in 1887 by combining the casing of the. My go to is CCI Standard (1070fps, 40gr Lead) generally about 10¢/round. 22 Smith & Wesson cartridge of 1857, and was developed by the American firearms manufacturer J. 0.303 Lapua Standard Plus 0.312 CCI Standard Velocity 0.319 RWS R 50 0.319 Eley Standard 0.328 SK High Velocity 0.339 Eley Club Xtra 0.340 Winchester T22 0.356 Federal Champion 0. The cartridge originated from the Flobert BB Cap of 1845 through the. 22 LR and various rifles, pistols, revolvers, and even some smoothbore shotguns have been manufactured in this caliber. The suppressed Sig P226 conversion gave us an average of 120-128 dB for all ammo tested. The cartridge is often referred to simply as. 22lr had some of the lower dB readings for this round of testing. 22lr rounds came in at an average of 155-161 dB, just under the unsuppressed H&K MP5. ![]() 22 Long Rifle rimfire cartridge (5.6×15mmR - metric designation) is a long established variety of ammunition, and in terms of units sold is still by far the most common in the world today. 22lr had some of the lower dB readings for this round of testing. ![]()
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