I finally saved up enough money and vacation time to enroll in the Basic Long Range Precision Sniper Rifle Course at the Badlands Tatical Training Facility in Oklahoma. I will need 200 rounds of ammo, but I plan to load at least 300. I don't have enough brass from one lot to load that many rounds. I have enough Federal brass to load that many rounds but it is basically all from different lots. What are you opinions on whether I sould try to purchase brass from the same lot or just load what I have? How much will it affect my shooting? Is matching brass and all that only really important for bench rest type shooting?