WLP except where Rem 2.5 are noted.
joe b.

Way I first had this "proven" to me was spotting in our clubs gong matches.

Two shooters were using the same 45/70 Sharps loaded with Unique . I watched 40 rounds go down range from each shooter. One lifted high and screwed down other rested the muzzle on a rest and came up level to the 200 yard gong. We observe the strikes with two off relay shooters using spotting scopes marking point of impact with push pins color coded for the individual . Score is hit or miss recorded by a 3rd scorekeepeer

Two groups, one high and one low about 4 moa apart was very obvious on the spotting board. You could say one guy holds different than the other.  However I took my 32/20 CLA Pistol caliber rifle with 4.5 gr Unique loads out week after and duplicated the 40 high and 40 low shot groups on paper at 100 yards. Two distinctly different groups.   

Only thing is I switched to 4227 from Unique and figured I solved the potential problem.  Now after measuring density looks like 4227 and Unique loading density is about the same.  Lesson for me is mount the same way every time.

Boats