I cleaned the gun for more marks, nothing more on the barrels, at the top rib it was just damascus.
Thank you, that rifle caliber, i can put 45-70 brass in, its almost perfect at the rim, just fine, case in the chamber is a bit loose,.459 500gr powder coated bullet should work, I cant push it from the muzzle, its stucked half way in. I think would be possible fireform brass and use 459 or 462 governments bullets.