I've been working on a load for my 16" 300Blk rifle with H110 and Barnes 110gr Blacktips. Chrono'd these suckers at +2,400fps. I think these should do the job as long as the shooter does his. If there's a monolithic 125gr projectile that'll feed in a Blackout application, I'm all ears. I know Barnes has one in their factory load but nothing available to the reloader.