Thread: Seating depth measurement problems

Hi Stug - interesting to read this as I have had exactly the same problem as you discribe.

Each to their own and as you have read above, there are many ways to do this.

The method I use on my Model 700 is to firstly remove the ejector plunger and spring from the bolt face, take a fired case, push a projectile into it and close the bolt.

Measure BTO length gently, then seat projectile in sized case a few thou further out.

Polish bullet ogive with scoth brite verticaly leaving smooth dull polished vertical lines.

Chamber dummy round and look for marks from lands, progressivly test this and seat bullet 1-thou deeper at a time until marks no longer appear and just touch is found.

One you have your press set, repeat with a new case and projectile and test. Now you should have a perfectly sized dummy round that you can use for future comparative measurments.