ED it is an amazing rifle and really not fussy at all.

Sabotloader the barrel make is the same as the Ultra Mag. And once IN the bore, the length of the short starter, other then the feeling of brass on steel, its not slip fit by any means, but it is not all that hard to move down the bore and seat.

Why is it, that this brass does so well with a powerful charge. I mean 110 grains of 3f Triple Seven is nothing to sneeze at. That bullet has to be moving.

Maybe tomorrow I will try the .504 in the Bison. See how they fit. I know the bore on that is tighter then the Ultra Mag. But we will see. I thought they were 200 grain, but they were 220 then?