I had a 45/70 1895S that I regret selling. It was a superb lever for hunting. Never had a GG, but still drool over them. Still use a 500g whitworth style bullet in my 32" .458 muzzleloader (1200-1600fps, 90-140gnFF) that performs really well, but never tried a 500g in the - really was impressed with 405 and less in HP/SP, though. Have fun with those levers!