freddiej
Well-Known Member
I am aghast at the amount of being off between two lots. I had to test a theory. I would say that you could be off by 4.4 grains, but 44 grains I can not believe. I just weighed 120 various/random cases from my supply of 264 Win and 7MM rem brass (the median weight was 235 grains, extreme spread on weights was 234.1 through 238.2). this is over all brands and both calibers: winchester, hornady, nosler, Federal, Norma, Barnes, and even W-W, XX-supreme. Only 2 cases were over 236.4. one winchester at 237.9 and another Winchester XX-supreme at 238.2. only one 234.1. most in the 234.X were 234.9. the "80% bell curve" had 235.0 through 236.0 in it. the actual number under the 1 grain curve was 107. something has to be wrong with your measuring, a 20% weight increase between two lots just can not happen. a 2% variance between lots is very much under the alloying and metallurgy manufacturing allowances. I would check your weights again. something went horribly wrong here.