![]() ![]() With subsonic ammo start high and work your way low. Pair your suppressed pistol, rifle or rimfire firearm with the best subsonic ammunition to deliver quiet yet powerful performance. 308 Win Handloads Testing & Understanding. This uses a dedicated bullet designed for sub-sonic loading that would be a good candidate if you can get your hands on some.Ģ20 RN bullets work really well with 12.3-13.0gr of Trailboss. That slower speed is the key to the effectiveness of subsonic ammo. 22 Long Rifle ammo features a 40-grain bullet fired at a subsonic, 710 fps. 308 Subsonic ammo shoots 1 MOA at 100 yards in my rifle - good stuff. Buffalo Bore Subsonic Heavy Standard Pressure 9mm Parabellum/Luger 147 grain Full Metal Jacket Flat Nose (Subsonic) Pistol and Handgun Ammo, 20/Box - 24J/20. Silencer Guide with Decibel Level Testing - Ammo To Go Hush: Its CCIs. Once you have understood the basics, you can easily get the right round for your purpose. 33 caliber spheres can be heard returning to earth after a nominal 19 second round trip. 177 caliber pellets as the smallest in caliber and free-falling 00-buckshot (from vertical firings) as the slowest. I found one load with 190 SMK bullets using the components listed above that shoots 1/2 MOA (1" 5-shots groups at 200 yards) though the suppressor. A considerable variety of subsonic bullets and projectiles were observed to produce audible sounds. Hornady unveiled the Subsonic line back in 2018 with a single. Primer selection is CRITICAL you have to test but I found that pistol and magnum pistol primers to give the best results - I like Federal 150 and 155's. But before we explore the load’s range results, let’s first take a look at the technical details of Subsonic’s design. I tried the 208gr AMAX which worked but was on the ragged edge of stability and results where not as consistent. The best results were with Trailboss/VV Tinstar and pistol primers.įor my AI AT Covert and 20" barrels - Both 1:10 twist I found that I could use 190 - 200 gr match bullets (Sierra) and 11.0gr - 12.3gr of Trailboss or Tinstar (depending on bullet selection). I did a ton of testing including drilling out the flash holes, using Magnum rifle primers, fast pistol powders as well as trailboss/tinstar. ![]()
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