264 win mag, R33 starting load

fisherman983

Well-Known Member
Joined
Apr 18, 2009
Messages
427
getting my custom gun next week and going to try r33 to get some fps over retumbo. my bullet touches the lands at 3.380 according to my gunsmith so looking for a safe starting load. going to start at 3.370 with r33 and the 140 berger.
 

coyotezapper

Well-Known Member
Joined
Sep 26, 2009
Messages
908
Location
Central Utah
getting my custom gun next week and going to try r33 to get some fps over retumbo. my bullet touches the lands at 3.380 according to my gunsmith so looking for a safe starting load. going to start at 3.370 with r33 and the 140 berger.
I'm assuming 26" BBL. If different let me know and I will adjust.

PMAX - 62,366 PSI

76.6 grs - 3237 FPS - 62,287 PSI

Start at 70 grs and work up in .5 gr increments to 3200 FPS.

Velocity=Pressure. When you are at 3200 FPS you will be at max pressure.
 

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