I am looking for a tad bit better accuracy at 500 yards. This 300RUM can shoot .5MOA at 100 yards, but at 500 and 600 thats a different beast with different problems.

I have several neck sizers. I find them to knock the neck out alot. So I quit using them. Only ones I like is the Redding competition bushing neck sizer. Excellent die.

I have tried in the past the hard chambering technique like John Barsness and several others write about, but that is so inconclusive for my feel for repeatable results.

Thanks for shareing your guys method.