Hello,
     I have been working up load for my 1898 Krag cut down rifle and while producing test loads noticed quite a difference in weight of R-P brass Graf brass. the Graf brass is about 20 grains heavier than the R-P...If you look at them the rim configuration is different. The R-P brass has a slight bevel from the bottom up and the Graf is squared like the 303 Brit. Would this difference in weight be similar to .308 commercial and 7.62 NATO military brass in that there would be a difference in case capacity? BTW 43.5 - 44.0 grains of H4350 in Graf brass seems to be the "sweet spot" with Sierra 175gr MK for this rifle w/ 1.5 moa. If the same charge was applied to the R-P brass, there is a possibility for different results due to a difference in case capacity and pressures, correct? What kind of accuracy can you get out of these rifles? Thanks for looking.