I did a 6.8SPC Savage and the solution I came up with for feeding from the mag was to modify a follower from a 6.8 AR15 magazine. I had to trim the exterior dimensions so it would smoothly slide up in the Savage's 223 mag box and then shorten the AR15 spring to suit. The new follower is about double the thickness of the original follower so you lose a round or 2 from the mag capacity but for practical purposes 3 rounds should be enough. Hopefully this helps somebody trying this new cartridge.