What powders do you recommend for 300 subs? I usually use 296 with good results. I seen the load for Trailboss and was curious. I figured it would be super quiet with speeds of approximately 800 fps.I wouldn’t do it. There are much better powders than Trailboss and if you have some TB, hang onto it.
I have a couple SW Blackout 8 lbers, I haven't loaded with it yet.CFE BLK or Shooters World Blackout is what I've used. I've heard Accurate 4100 is also a good one.