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nate45 · January 24, 2012, 02:14 AM

I can't comment on the 300-MP, never used it, though I'd love to here some loads for it. I've thought of getting some 300-MP since I heard about it.

I can comment on the 300 grain XTP though. I load 21 grains of H-110 with a CCI 350 primer. I use the first cannelure to crimp in, that is the one closest to the top of the bullet. My little Pact Model 1 XP shows I'm averaging around 1180 fps from my 5.5" Super Blackhawk. When I tried the same load with the bullet seated in the last cannelure, it only developed around 900 fps from my 6" 629-6 I used to have. I realize its not a very good test, being to different guns and barrel lengths, but it seems to develop less pressure when crimped in the bottom cannelure.

January 24, 2012, 02:14 AM	#13
nate45 Senior Member Join Date: July 15, 2007 Location: Illinois Posts: 3,746	I can't comment on the 300-MP, never used it, though I'd love to here some loads for it. I've thought of getting some 300-MP since I heard about it. I can comment on the 300 grain XTP though. I load 21 grains of H-110 with a CCI 350 primer. I use the first cannelure to crimp in, that is the one closest to the top of the bullet. My little Pact Model 1 XP shows I'm averaging around 1180 fps from my 5.5" Super Blackhawk. When I tried the same load with the bullet seated in the last cannelure, it only developed around 900 fps from my 6" 629-6 I used to have. I realize its not a very good test, being to different guns and barrel lengths, but it seems to develop less pressure when crimped in the bottom cannelure. __________________ "No free man shall ever be debarred the use of arms."- Thomas Jefferson ΜΟΛΩΝ ΛΑΒΕ (>_<)