I drug my old 45 Cal Seneca out of the safe today. I've shot paper with it many many years ago. Would like to take it squirrel hunting. However a 45 Cal prb can carry lethal energy quite aways downrange. What would be the max amount of powder you would consider to in order to be safe? I'm thinking 30ish grains of fffg. Only looking to kill squirrels and rabbits so excess velocities won't accomplish much beyond ruining meat and POSSIBLY being dangerous downrange to others.