Palmetto, your 2/10ths grain spread in charge weight's plenty good enough.
.308 Win. ammo with 3/10ths grain spread in charge weight's shot sub 3-inch 30-shot test groups at 600 yards.
There's many things more important that that much charge spread.
US Navy Distinguished Marksman Badge 153
Former US Navy & Palma Rifle Team Member
NRA High Power Master & Long Range High Master
NRA Smallbore Prone Master