My .58 Kodiak puts both barrels together (W/Round Balls) at 50 yards with 100gr. 2f GOEX, and appeared to shoot perfectly parallel regulation with 110gr. 2f GOEX out to 100yards. I wish it would shoot a larger load, oh well.

With 10gr. less, or 10 gr. over, it crosses and starts elevation problems, growing worse as the loads are decreased or increased.

Due to it's barrel weight, these rifles hold very well. I removed the 1 pound bar of lead from the butt stock. I was told they ALL have it. When refinishing the stock and sanding the butt with an orbital sander, the pure lead bar started rattling. I would not have known it was there, otherwise. I drilled a small hole, then in went a wood screw which made extraction easier - something to grip with pliers.

I did a little work on the breeches and nipple height to lower the hammer noses. One must be careful so the main springs don't contact the bottom of the lock mortices.