Thread: Reloading the .223r to low velocity

Putting on the ADI salesman hat for a second... I use AP100. It's normally used in pistol cartridges which is makes a lot of folk nervous. About 11gr will give roughly 2400ft/s with a 55gr bullet and 12gr will give around 2600ft/s with a 50gr bullet. Roughly 22 Hornet level loads. You get enough chamber pressure to seal properly so no sooty cases. It's bulky enough to get a good case fill, so it's not position sensitive and velocities aren't all over the place. It burns up fast so you get low muzzle pressure meaning it suppresses exceptionally well with less hot gas for the suppressor to deal with. Accurate too.

Trail Boss is another option. With a 40 grain bullet I got roughly 2000ft/s which puts it right around 22 Magnum levels.

Have also used it in 300 Blackout, and 44 Mag for subs.