Ok so I have a hypotheical situation that I am curious if anyone else has tried or thought of.

I want to have a multi caliber switch barrel system and use a long action centerfeed rifle so I can shoot both short and long action calibers.
I want to ba able to feed short action calibers from a magazine reliably so for that reason I think using a short action mag would be best.
The question is:
since the 220F savage Slug gun uses a long action bottom metal but is inletted for short action mags, could you use a bottom metal from a 220f in a regular long action rifle(110) and would it feed cartridges from the short action centerfeed mag?