WB
Isn't the new .321 GNR a ".308-.357"?
Saturday, July 28, 2018, 16:36

By measurement the .300 GNR is a .401 Herters necked to .308, or .30-30 based .30 Herrett "short" cylinder length. Over a .357 based version the .300 GNR has super thick and strong brass with an ample hefty rim. They last tons of loads and are almost indestructible.

Gary's .357 version is a little bit easier to make by simple FL re-sizing/necking operations. The .300 GNR requires a .30-30 to be run through an extra form die and cut off. Not a big deal but an extra step. I actually enjoy the operation.


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