Jim,
How close to the lands did you start with? I began using Berger's recommendation but seated bullets in .03 increments with success. But I have considered smaller increments. Interesting what you are doing.
As an added note, good to hear your 243 AI is still going strong with 3500 rnds down the bbl. My 243 AI is definitely easier on the bbl than my 243W's are. Doesn't foul as quickly either.
Oh, see where you started at now
Last edited by alpinecrick; 01/17/21.
