There are not a large number of .54 caliber bullets and sabots out there, but for deer hunting the Harvester 54/.452 Crush Rib should work nicely with a .452 bullet of 250-300 grs, and for big, mean stuff in Alaska you could try this:

http://www.harvestermuzzleloading.c...&option=com_virtuemart&Itemid=18

I envy you your playground.

Life is like a purple antelope on a field of tuna fish...