I also second the suggestion of building a .45-70 on a 12 ga action as was done with my Beretta pictured below:

Note gas escape channels on the action face.
It is also nicely finished externally and is very effective with low power/pressure ammo. Also little recoil:


Or another American cartridge, the .405 WCF, another proven killer of big game than uses Hornady 300 grain ammo or hand loads from 210 to 400 grains.:

This made on a Simson Co Suhl 12 gauge action with wood by B Dudley.

I do not make guns, I just like them and hunt with them.

Last edited by crs; 11/29/19 10:03 AM. Reason: correction
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Reloading Ballistics App at http://www.xplat.net/