I nabbed a Ruger American bolt gun in 450bm, with 16" barrel and stock muzzle brake. I put a Leupold VX1 2-7x33 scope. It shoots the Hornady Custom and Black, off the shelf ammo quite well, roughly 1moa, and nearly identical ballistics, given they load the 250gn FTX for both at a published velocity of 2200fps. I've had excellent success dialing in the 250gn FTX using 38.2gn Lil Gun. Ballistics are a rainbow of course, but this thing even with a 16" barrel, is grouping well consistently. I think for me it is as I heard someone describe liking having both an older straight waller like my 35rem and this new round. It's been a dandy and easy to dial in for.