So i have a 220 slug gun that here in the UK there is not really a specific reason to own.

I was thinking of re barreling to a large caliber, 338 maybe. Its just a thought at the moment and was wondering if anybody had done something similar?

I've been told that the 220 is a beefed up 110 and the parts are interchangeable - again I've not done any research and I suppose this is the initial steps in making contacts.

I am not bedded to a 338 and any suggestions are welcome; even suggesting its not possible.

All the best

Mozz