Subsonic 300 Blackout loads with pistol gas system???

[supersniper]

Just started working with a powder coated LEE 230TL - 5R boolit in a 16" CMMG barrel with pistol length gas system.
Hoping to get a full cycling subsonic rig.

I would appreciate any load data for these boolits (coated or uncoated) and gas system length. Thanks

[Smoke4320]

10" noveske with YHM suppressor 8.7 Grns Lil Gun gets me approx. 1030 FPS in summer

[wlc]

There are a lot of loads using a pistol gas system over on 300blk talk in the handloading section. Not necessarily using cast, but I would start there. There is also a thread on ARF called the 300blk master thread with lots of loads in it. The newest Hornady manual has a pretty extensive section on the blk as well. They list weights throughout the spectrum from 110-225 grainers. Again not cast, but good reference.

[supersniper]

Already been through a ton of threads - a lot of loads are for the carbine gas setup. Wanting to use subsonic loads exclusively.

[timthetoolman]

I have the same setup you do. Worked up the supers first but Im on to subsonic next with the same mold and PC approach you are using. Im curious too. Keep ya posted on what I end up with.