I personally would have went after the White Mountain Carbine myself. How much were they asking for that?
Although that is a good find on the SB. I have two 12 gauges I use for birds. But the .62 caliber SB I had shot well. Out to 35-40 steps, it would group a .600 ball real well. And the penetration of that big 324 grain ball was excellent. But I sold that barrel to a forum member. I really had no need for with with the 12 gauge New Englander and the Knight TK2000.