ORIGINAL: nchawkeye
I ordered a copy of the NMLRA association record book the first year it was printed...The record grizzly was killed with a .54 over 120grs FF...Shot was about 100 yards and the ball was found under the hide on the off side...Bear was lung shot and ran about 60 yards....
That gun and your gun may not even resemble each other when you squeeze the trigger. Yours may not like over 80 grains at 100 yards. It may not like the lube - may not like your powder - may want a wad - may want deeper rifling.... way-too-many variables involved here.
Get out & try it. Because you are dealing with a violent creature, get a chrongraph to ensure penetration. Then go call Clint for that backup 44...lol