Fred at Sharp Shooter Supply (SSS) has developed a Single Shot Ramp ($18.00) that fits the new centerfeed actions like a glove. It allows you to do away with the magazine, follower and spring. This would allow you to partially fill the blind magazine with epoxy to gain some thickness. I have a Savage 111 (LA) centerfeed, blind magazine with the SSS single shot ramp installed. I've used various barrels including 204, 260, and 308 and the ramp works perfectly with all.