Re: 75 grain swift seirocco
I don't have any Magpul mags, but since you can seat the bullet to 2.260 like M193 and M855 that should not be an issue. BTW, these bullets are fairly expensive, more than twice the price of my match bullets, but these are superb hunting bullets, they get to work once they reach the target whereas my match bullets have done their job just punching the paper.