![]() In most pistols with four inch (or less) barrels, standard velocity rounds are subsonic. Host firearms are relatively inexpensive in comparison to their centerfire counterparts, ammunition is once again cheap and packing 1,000 rounds for a range trip doesn’t require a kettlebell workout regimen. 22LRĪn obvious choice in my opinion, this rimfire cartridge is universally accepted as being excellent for suppression. SILENCER SATURDAY #43: Top 5 Best Rounds To Suppressīesides the all-around entertainment value, my criteria today includes subsonic versions of ammunition, overall availability, cost and commonality between a variety of hosts. Hint: 45ACP fanboys you may want to fire up your typewriters, jump in your Studebakers and head down to the country store to mail me your letter. For today’s exercise, let’s take broad ‘is this enjoyable?’ approach at the best rounds to suppress.Īs always, I expect you to illuminate me on which rounds should have made today’s list. Using absolute terms like ‘best’ will almost always lead to trouble: my best gun/suppressor/ammo combination may get a resounding meh from those with different requirements. So as the weather takes a turn for the wicked today, I thought we could stay inside and have an open discussion on the top five best rounds to suppress. ![]() ![]() Last week we looked at some rimfire silencers because, besides being cheap, clean fun, 22LR host and silencer combinations can be stupid quiet with the right ammo. 223 caliber bolt-action rifle firing low-velocity (subsonic) ammunition using a GEMTECH G5-5.56 suppressor.Ĭompared to the high-velocity (supersonic) unsuppressed condition, the combination of subsonic low-velocity ammunition and a firearm suppressor provided a reductions of 45, 38, 40, and 48 dB, peak sound pressure level at the muzzle, left, right ears and behind the shooter, respectively.Greetings everyone and thanks for joining us here for TFB’s Silencer Saturday, where every gun deserves a quality serialized tube. The peak sound pressure levels of a Remington 700. 223 caliber bolt-action rifle firing high-velocity (supersonic) ammunition using a GEMTECH G5-5.56 suppressor. Specific reductions depend on the ammunition and suppressor. Main article: Suppressor § Subsonic ammunition and reduced sonic signatureĬombined with firearm sound suppressors, subsonic ammunition may significantly reduce sound levels compared to normal ammunition. These are designed from the start as dedicated subsonic projectile systems. 45 ACP ammunition load, of a 230 grain bullet at 850 feet per second, is naturally subsonic.Īlternatively, specialized firearms and ammunition may be used to optimize total subsonic ammunition effectiveness. For example, the traditional American military standard. Some ammunition types were inherently designed with heavier, slower standard bullet weights and velocities. ![]() Subsonic ammunition with normal bullet weights often fails to properly function in such firearms. Subsonic loads for 9mm commonly use 9.5 grams (147 gr) bullets at velocities of 300 metres per second (980 ft/s).įor these ammunition loads, balancing bullet weight and velocity are required to ensure that the ammunition will still reliably cycle semi-automatic firearms. In this instance, heavier bullets are loaded in standard ammunition, which reduces muzzle velocity below the speed of sound.Īs an example, the very common 9×19mm Parabellum standard military round is a 7.5 grams (116 gr) bullet at velocities typically around 360 metres per second (1,200 ft/s). Standard calibers Subsonic versions of standard rounds 1.1 Subsonic versions of standard rounds.
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