Subsonic 300 Blackout Ballistics Chart

As they don t break the sound barrier when fired they are quieter to shoot than supersonic ammunition. First supersonic ammunition was tested unsuppressed through a custom ar 15 pistol with a brownells 10 5 inch 300 blackout barrel with a 1 in 8 inch twist rate. Ballistics chart for bullet at 900fps muzzle velocity courtesy jbm ballistics so why don t other subsonic 300 blackout manufacturers make two loads to accommodate both long and short barrels.

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Subsonic 300 blackout ballistics chart. Subsonic handgun utilizes tried and true xtp bullets that expand reliably at subsonic velocities. 11 fs hodgdon cfe blk hodgdon h110 hodgdon h4198 hodgdon lil gun hodgdon trail boss improved military rifle imr 4198 improved military rifle imr 4227 ramshot enforcer vihtavuori n105 vihtavuori n110 vihtavuori n120 winchester 296. Hornady subsonic ammunition designed for accuracy and performance below the speed of sound now comes in both rifle and handgun loads. They are lazy and believe people don t care about the details.

At around 220 grains subsonic 300 blackout ammo weighs about as much as 45 acp and travels about as fast as 45 as well. 300 blackout 190 gr sub x subsonic item 80877. Round type weight muzzle energy ft lb muzzle velocity ft sec. To avoid it from giving a shooter s position subsonic 300 blk loads use heavier bullets and adjusted powder charges often tailored for a complete burn in a short barrel.

But if you won t be using it for subsonic loads you may find the 1 8 rate as a better choice. This calculator will produce a ballistic trajectory chart that shows the bullet drop bullet energy windage and velocity. Like 300 blackout ammunition it had the ability to be loaded to subsonic or supersonic levels and it would fit in a standard ar15 action and magazine. The difference with discreet ballistics is that we know that.

Some hunters speculated that it would sound the death knell for 300 blackout due to the fact that hunters in some north eastern and midwestern states were limited to hunting deer with a straight wall cartridge. Due to nfa laws in my home state two different guns were used for this test. The blk 300 is fashioned as a subsonic cartridge to complement and enhance the suppressor technology. Use this ballistic calculator in order to calculate the flight path of a bullet given the shooting parameters that meet your conditions.

The short answer is. American eagle ammunition ballistics. Subsonic 300 blackout rounds are a bit of an outlier in the world of rifle ammunition. Comparison of the 300 blackout ammo used in this test.

Acc the company that developed the blackout 300 cartridge recommends the 1 7 twist rate. The hornady sub x 190 grain load for example exits the muzzle of a 16 inch barrel at 1 050 fps where it is carrying 465 foot pounds of energy.