100 gr. FFg is a good charge for deer, in a .54 ............. I use 120 in mine, but I like complete penetration and exit, if possible. If I ever got the chance to use it for bigger game - elk, moose, grizzly - I'd go to 160. My rifle handles that heavy a charge very well. I use a very tight ball patch combination on the initial load, then slightly looser for reloads, to make reloading quicker.

Best, SRH

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