This will work, 410 thru ? the photo is one that Brownells sell for 140.00. I have a Japanese knockoff that I bought years ago for 20.00, Surely there is one like it made in China. For accurate measurements a setting ring is needed, also works well as a chamber gauge


Last edited by james-l; 08/03/16 05:55 PM.
I learn something every day, and a lot of times it's that what I learned the day before was wrong