[HOLLiS]

Gene, The Greenhill formula is just a starting point for some, maybe more important to bullet manufacturers than reloaders. Sort of 6 of one, half dozen of another, in selecting bullets. I have never used it, never had a means to impliment it.

The search, for me, was for the right bullet from the right bullet manufacturer. A 180 grainer is not the same from manufacturers to manufactures. I do cast my own, but have not done it in ages. I keep the makings around, just in case bullets get hard to come by.

Probably for the average shooter it does not matter if it is a 180 gr Sierra or a 180 gr Hornaday. Like in tolerances for machining it is + or - some tolerance, same with shooting. The tighter the tolerance the more time intensive and expensive.