Ihave used MD's loads, R15 and 250 gr bullets, published here and in the Big Book of Gun Gack I. Got almost the same velocity (and probably pressure, I think) as he did, in the same barrel lenght. As W760 and W748 have been recently imported, I tried the 748 with various 250 gr. And, eureka! I got practically the same results as with the R15, with 2 more grains of 748. Being impossible to get the Ramshot powders here, for the 286 gr I have (Hornady Interlock and PRVI), instead of Big Game I used W760. And I got, again, almost the same velocity as MD with the same charge he uses with Big Game: 67 gr with the Hornady and 68 gr with the PRVI, for 2450 f/s. Good loads! I have not used before these W powders. I am aware of their temperature sensitivity, so probably those charges should be lowered for summer uses.
