Roger London
New member
I got this load from load data.com and also found it referenced in an issue of American Rifleman. Reduced it by 5% and worked up to it in half grain increments and got good groups at 47 gr.with no pressure signs. I could lift the bolt easily with my pinky. Got to look at a Sierra manual today it's max recommended charge is 42.7 grains! I'm almost 5 grains over. Ramshot allows a heavier max charge for the 160 gr. Sierra than Sierra does for a 140. I'm confused! This load doesn't seem hot at all by outward signs, but according to Sierra's data I'm way over. I don't know what to do. Should I pull the bullets and start over? 47 seems in line with the max for Big Game with other 140 grain jacketed bullets.
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