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Peter M. Eick · November 24, 2000, 02:24 PM

Keep in mind if you are using the c-34 primer for the M1A, it is a Magnum "equivolent" primer, and you need to back down your starting loads a few grains. I shoot federal gold metal brass, 38.5 grns of IMR-4895 with c-34 primers and Seirra 168 BTHP bullets loaded to 2.810. Now, if you look at the Seirra book, I am long loading the bullet, different brass, different primer, and a pretty low charge weight. But out of my SuperMatch and NationalMatch's, the brass lopes out about 5 to 6 feet forward and a foot to the right in a nice little pile. Accuracy is very good, better then I am.

I do recommend that you run a c-34 primer (the cup is thicker and harder, take a dead one and crush it in some pliers and compare to other cups) but keep in mind it is a Magnum primer.

November 24, 2000, 02:24 PM	#11
Peter M. Eick Senior Member Join Date: August 3, 1999 Location: Houston, Texas Posts: 2,991	Keep in mind if you are using the c-34 primer for the M1A, it is a Magnum "equivolent" primer, and you need to back down your starting loads a few grains. I shoot federal gold metal brass, 38.5 grns of IMR-4895 with c-34 primers and Seirra 168 BTHP bullets loaded to 2.810. Now, if you look at the Seirra book, I am long loading the bullet, different brass, different primer, and a pretty low charge weight. But out of my SuperMatch and NationalMatch's, the brass lopes out about 5 to 6 feet forward and a foot to the right in a nice little pile. Accuracy is very good, better then I am. I do recommend that you run a c-34 primer (the cup is thicker and harder, take a dead one and crush it in some pliers and compare to other cups) but keep in mind it is a Magnum primer. __________________ 10mm and 357sig, the best things to come along since the 38 super!