Originally Posted by davewilson
i think you'll find the weight of the bullet has very little, if anything to do with the POI. separating by weight is just not necessary.
Considering that the weight variation was less than 1% in a hunting bullet I woould have to agree with Dave.
How about shooting a group with the 3 lightest bullets and then another with the 3 heaviest bullets (on top of the original group) to see if you can distinguish between them. That should shed some light on the matter.