You have to try a given ammo to know what it will do out of your gun. All of mine seem to like certain loads for sure. When testing ammunition I try to let the gun start from stone cold every time because heat of the barrel has always seemed like a big factor along with ambient temperature. if you are just getting a box or two to check out try to get the same lot number if you can,I have seen some differences between lot numbers. Keep us posted with your results,it's always interesting to see what results others obtain.

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