ok, i searched but didnt find a solid answer yet. so i'll ask away here. i have a bunch of LC LR brass that im going to use in my .308. i have a few handfuls of different dates but mostly 07. question is, will i notice a big difference in POI or anything else if i just go ahead and load up some rounds with mixed date stamps? it is all LR brass, so how much of a difference will i notice at say, 600-800 yd's?