could a ruger 44 mag carbine, or a mini 14 be converted to shoot the .454 casull? Is the casull pressure to high for a autoloading carbine?
Mike

From a pressure stand point (assuming Loadtech is right)
44mag 35000
454 50750
7.62x39 45000
223 55000
The mini-14 handles the 223 so it handles the pressure. Could be it be made to function with the 454 I have no clue.

Check on big Bore. There some huge rounds being used in a ar-15.
https://forums.accuratereloading.com/eve/forums?a=search...&forum_scope=4711043