I am shooting a Marlin Guide gun in 45/70. I just bought an NOE 350 gr. gc. mold. Is there a best speed for a 350? I am thinking 1700 - 1800 fps. I will be deer hunting and poss. black bear ( if I see one) I know that to much velocity will ruin alot of meat, not to mention tenderizing the shoulder. I am using imr-3031 and am only looking for a 100 - 125 yd. load max.. I use a Williams fp on the back, and a fire sight up front. Thanks in advance, Stu