brett1955, I’m glad you mentioned the Matchwinner. Until 6 months ago, that was my standard bullet, and I got the same great +/- tolerances you mention. I’ve settled on the RMR round nose because it feeds a smidge more reliably in the Staccato. If the bullet punch profile were an exact match for either bullet, there’s no reason the seating variances would be any different. But without machining an exact copy of the bullet, no punch will be perfect. Thanks for your insight. I was expecting the round nose seating to match the MW variances.