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I checked fired cases out of the chamber and they had zero runout. Sized in the body die (not just my 308) and there would be a few thou runout. Not much but there. Measured with a 21st Century gauge...

You're right. I take more notice of SD but in my best loadings get single figures on both. And yes, you can delude yourself with small sample size eg the classic cherry picked 3 shot group.

A bit...

Just a further note on runout. When I shot fullbore my reloads were sorted into good and "bad" runout. Good for the harder ranges and comps, "bad" well, they tended to pile up to the point I had to...

Agreed. When the annealing "fad" appeared I decided unless I could do it consistantly case to case I wouldn't bother. I never had a need to do it due to split necks. Since gone down first the...