I buy only Premium ammo off the shelf. I match the bullet style, gr, etc to the game I plan to hunt. I always sight in and fine tune between different bullet styles, manufacturer, grains and even lot numbers of the same bullet I may have picked. I let my gun or guns decide what bullets I chuck at game. To me it is absolutely essential to know my gun/load is where it has to be before I take to the field. I love shooting, practicing and playing around with different bullets...it definitely makes me a better shooter. The more I practice, the better I get. I always say confidence is often the hidden factor in hunting. If I am confident in my load and gun that is one less thing to factor in for getting my game and ultimately being successful.