Alternatively you can build a 50-90 on the 12 gauge as well.

Bonanza's brother built a 50-90 on a Merkel 12 gauge frame for me. The gun is truly awesome and at nearly 5,000 foot pounds of energy with 535 grainer Woodleighs over Reloder 15 powder, there is plenty of beast in the 50-90.

And Bonanza, I know you made the offer before I got the gun that IF I did not like it, you'd buy it. Sorry to inform you. I cannot ever envision me selling this gun.