One thing you mentioned is using Factory Seconds….. check those bullets, they are “seconds” for a reason - could be varying wts., could be in the ogive, could be variations in the actual diameter. Varying weights and slight differences in the diameter will have an affect on velocity and POI.
BOB thanks for reminding me! I to was wondering about that! I'll start checking into it! Could very well be part of it! Thanks so much!!
