303 conversions

Hi folks.

I've got a old bubb'd 303 that is beyond restoration to its former glory.

So. That in mind. And bear in mind I shoot 40 S&W so have lots of 40cal projectiles.

Has anyone heard of or ever done a 10mm auto chambered rifle?

I was thinking a modern take on a De lisle carbine in 10mm auto?

That way I can use it for bunnies etc on public land and if a deer pokes its nose out with a well placed shot itll be in for a visit to the freezer.

Cheers folks

is there something more akin to a .40/70 out there???

Lee Enfield .40 Unicorn. Could be a name for the cartridge.