300 blackout sub loads

[Jev]

Want to load up some subs with Hornady 208 grain bthp using accurate 1680. Everything I’ve read is 11 grains is a good starting point. Will be shooting out of a Tri Arc 10.3” with a Rugged Radiant can. Any suggestions on a good starting point.

Thanks

[Jev]

So I found 11.2 is quiet cycles the gun perfect. Have not dialed in the accuracy portion yet, weather has been terrible in The NW. Wasn’t impressed with those results. Need to shoot more,

[Jev]

So I found 11.2 is quiet cycles the gun perfect. Have not dialed in the accuracy portion yet, weather has been terrible in The NW. Wasn’t impressed with those results. Need to shoot more,

[opngrnd]

My results below with 208gr bullets:

300 BO 10.3" bbl
CCI 450
Hornady 208gr Amax
11.3 gr Accurate 1680
=1096 fps

Your results may vary.