Thread: 300blk on a howa mini and mag v std supp

Hey lads, looking at building a 300blk on a howa 223 mini action (10inch barrel 1:8 dedicated subs) and have a few questions.
Will the mini action mag fit and feed all factory ammo (looking at hornady 190subx) and will a 240smks loaded to sub speeds (powder capacity) fit in the mag.

Also ill run a dpt and wonder if the magnum version will decrease noise levels at all ??
@DPT maybe


Thanks team.