Who's running an AR10 chambered in one of these cartidges and running long skinny heavy for caliber bullets. Especially the 105 berger hybrid and 110 smk. I know it's a known problem with most barrel extensions where these long skinny bullets don't ride up the feed ramp, but instead slide right through and slam into the back of the barrel. Who's running one with zero issues? Who made the barrel/barrel extension?
Thanks
Thanks