Been wringing out a new 9mm.
2 of its most accurate loads are 3.4grs 700x,and 7.4 grs of #7.both these loads use the same powder measure setting,they both are within 30fps,of each other,take up about the same case capacity,,,both of these loads are most accurate,with the mp 275 copy boolit.
Almost same exact load,,4grs difference in powder,,hmm makes my brain hurt.