Cup and Core is all I have shot for the last 15 years and the deer rarely move more than 20 feet, if that. Hornady Interlock 140 grain BTSP for my .270. This ammo got discontinued so I bought 25 boxes online recently. I should probably start reloading but I just haven't had the time to learn it. My shots are typically 200 to 350 yards on average. I see no need to ever change as it is very accurate
