I recently acquired my father-in-law's circa 1921 Savage 250-3000 model 99 lever action rifle. In advance of purchasing hard-to-find discontinued ammo, I would like to ask for opinions on whether 87 grain 250 is sufficient for whitetail at 100 to 150 yard ranges (I live/hunt in the UP of Michigan). And if anyone has a recommendation/legit site to purchase ammo for this weapon, that would be appreciated too. tks, Joe