Thread: 300win mag, 300prc, 300rum, 300norma vrs

Originally Posted by McNotty

Custom 300 Win mag chamber will do everything a 300 PRC does. 230 and 250 gr. Check out Mark and Sam on youtube. They running same powder charges and getting less pressure from Win mag than the PRC.

My father inlaw has built a 30" barreled 300 Win Mag, rechambered a 2nd hand 308 heavy target barrel, its a hammer, pushing 208 elds at 3100 fps, thats 300 Rum performance from much less powder.

The barrel is screwed onto a T3, being single fed.