The 50 cal is fun to use but sure as s**t don't want one, completely useless to me to own as it ain't designed for hunting purposes and way over priced to shoot regularly (good for a bit of fun and wow factor for those that have never used one) but it grows old quickly I can tell ya.
798gr Hollow Point on giant bunnies is a sight to behold As for it not being a hunting round I beg to differ, perfect for hunting planes, trucks and Taliban
Back to the .223 ammo, I've found that the little Howa Mini Action loves the OSA 55gr blister packs that HPGS sells.