I normally load a 69 grain HPBT sierra matchking for my .223; but due to the recent rush on everything I've had trouble finding them-so I've found a possible substitute: Berger VLD 70 grain HPBT. Will this round be very much different than my old load, being that it is only 1 grain's worth of difference between the two? I may be asking a dumb question-but I want to buy in bulk and want to know all I can before I make the purchase.