Don't forget ear protection, stapler, roll of masking tape or shells!!!

Speaking of ammo, make sure the bullets are the same make, grain and even lot. Don't laugh I have seen guys shooting 180 grains, then 150 and back to 180 and chase the bull all over the place, it happens. I have also noticed with factory ammo sometimes the lot of different ammo can change the reulst ever so slightly...so never take it for granted.

Lastly always shoot a min. of 3 shoot groups before turning that adjustment knob and allow time for the barrel to cool between shots (especially if you shoot a magnum or hot loads).