hells canyon armory mag will get you there too. Just had unknown munitions finish up a 300 wsm+p on a tikka. Had the same thoughts, short, handy .30 cal thumper to run dedicated suppressed. The new UM mags/bottom metal are pretty nice, I’ve messed with them a little, but they did protrude a bit more than I liked for a hunting rifle. The HCA mag works with factory bottom plastic (not as bad as I thought) and only sticks out a little. UMs mags will hold an extra round though.