Thanks for the video you cleared it up better for me. I have a lilja barrel coming in this week and will need to do this. Also nice base class build I just jumped up to open this year but will be keeping my pro varmint as a base class gun after nationals next month.
I think the Lilja prefits come with a 1.200" shank length with barrel shims. If you know the bolt face to action face distance you can set the headspace to the ammo you plan on using. Next video will be about measuring rim thickness.
9 out of 10 of the top production class competitors from last year's finale were using the CZ 457 MTR. I think any CZ 457 that fits you well would be the way to go. The MTR at $849 MSRP and the Bushnell Match Pro ED at $749 MSRP puts you just under the cost cap for Production class for PRS Rimfire and is a killer combo (but it will put you in Open class for NRL22).
