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armedtotheteeth · April 7, 2007, 10:41 PM

I use 180 Grain Sierra gamekings in my 300 Winmag. I have used IMR 4350 and Hogdon 4350. The hodgdon seems to shoot a bit tighter with longer barrels. I load to the max 71.0 grains. I wouldnt start out this high, this is slow powder. Use magnum primers and be sure to trim your cartridges and check your overal length. Do not excede cartridge OAL.

April 7, 2007, 10:41 PM	#16
armedtotheteeth Senior Member Join Date: October 3, 2005 Location: podunk, Texas Posts: 1,610	I use 180 Grain Sierra gamekings in my 300 Winmag. I have used IMR 4350 and Hogdon 4350. The hodgdon seems to shoot a bit tighter with longer barrels. I load to the max 71.0 grains. I wouldnt start out this high, this is slow powder. Use magnum primers and be sure to trim your cartridges and check your overal length. Do not excede cartridge OAL.