300 blackout subsonic ballistics chart. The round was developed in house at advanced armament corporation aac on the older 300 whisper cartridge. Most 65 grendel vs 68 spc loadings will have similar results. The best load for the 25 acp is the hornady 35 grain xtp hp round. So you think your sbr can shoot just as good as a rifle at extended ranges.
Its ability to go subsonic use the same lower as your ar 15 hard hitting power its use as a hunting cartridge as well as the fact that you can cut your old 223 ammo into 300 blackout. Almost identical until about 400 500 yards where the grendel gains an advantagefor those who love the ssa 140 grain 68 spc loading lets match it up against the 129 long range accubond out of a 65 grendel. If that round does not work well in your particular firearm then use federal remington or winchester 50 grain ball rounds. The velocities obtained were for a 10 shot average with the 300 grain sierra bullet and 5 shot averages with both the 250 grain and 320 grain sierras.
June 12th 2018 hodgdon h4350 powder available now both 1 lb and 8 lb. 22 nosler is all about pushing maximum velocity with a 22 caliber projectile from an ar 15 with minimal required changes to the rifle. Notes about the above chart. Complete 9mm ammunition ballistics chart.
A new cartridge has been taking the ar 15 community by storm known as the 300 blackout. The aluminum core initiates the expansion slightly after contact pressing back into the pre stressed jacket and activating a violent incapacitating energy transfer. The cq is a lightweight hyper velocity design using an aluminum core and pre stressed jacket. The goals are simple.
The 300 aac blackout is a cartridge worth learning about for many reasons.