Powder for subsonic 300 blk?

I can't seem to find any AA1680. What else is available that can be good to use?

Check out Hodgdon's site. They have some loads there.

http://www.hodgdonreloading.com/data/rifle

I'm really looking for people's opinions that have used other stuff. I guess most people use AA1680?

I've tried H110 but I didn't like the accuracy out of my 16" barrel. Of course they were mainly supersonic loads.

What platform are you using. Bullet weight? I have some good sub loads for my bolt gun that would be terrible in my AR.

I've got an HR AAC Handi-rifle in 16" and an 8.3" barrel in an AR platform.

I use blue dot in my R700 300Blk with a 16 barrel, so far its the best one I have tried, got the grouping down to about an 1" through the suppressor. I also use a 208 AMAX.

I used H110 with decent results with a 200+ bullet