223 remington- recipie needed- 64 grain

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anybody out there got a recipie for a 64 grain psp bullet using ww 748 powder? i've got a 1/7 twist - the only thing i found on the hogdon/winchester site says never exceed 25 grains with 64 grain bullet anda 1/12 twist- right now i'm shooting 25 grains of 748 under a 70 grain semi-spitzer spper, and that's the light load in my 11 manual- 27 is the max- with a lighter bullet, the powder should be able to be stepped up a bit more- cci small rifle magnum primers
 
My Speer manual lists a 62 grain fmj-bt, Here is the load info for the 748
23.5 @2556
25.5 @2948
(CCI Magnum Primer used)
 
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