I have a 110 LA that I am using as a switch barrel rifle and the 22-250 and 243 won't reliably feed from the 30-06 centerfeed magazine. I ordered a short action centerfeed box, follower and spring but mounting it is problematic to say the least. The rifle is set up for the 300 Win mag now but elk season is over and I want to convert it to 22-250 for coyote hunting. Any ideas?