I’m presently undecided on this caliber but think I have narrowed it down to a 12” or 16” barrel, slide bolt receiver, and cast powder coated projectiles likely in the 405gr range.
I’d really like to hear about your data with your barrel length and velocities.
Cast data from 300gr to 420gr, somewhere between 1500fps to 1100fps is what I’m expecting to fit my needs.
I’m not sure if the recoil with the 12” AR pistol platform will be too much to use as a cheek weld, hopefully some of your data will prove useful.
Thanks guys!