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I load for the .270 wsm, Hornady SP Interlock in 130 and 140 grain bullets. I use RL22 and CCI primers. For the 130 grain Hornady bullet, I use 66.0 grains of RL22 and for the 140 gr I use 65.0 grains of RL22. You might want to start out lighter than that and work your way up.
RL19 is...