270win 100gr loads

IMR4320 or IMR4350 always work well. With a 100 gr SP Hornady we used to use 59 grs of IMR4350 and get around 3350 from a 24" without any pressure signs CCI200 LR standard primer. It was a full grain under book max IIRC, and pretty accurate without a whole lot of noise and blast.
 
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