1. The neck is too big. 338 is just way to much blow out for a custom gun. If your making a rebarreled Mosin then that is to big. Should be about 337-336 in the neck. I would like mine to be 335 at the mouth and 336 at the shoulder.
2. 120thousanths of freebore. Are you guys at PTG kidding me?!

3. Also the slope of the forcing cone on the lands is to gradual. First its 29 then it 35 degrees. A 45 would be much more desirable for accuracy desiring shooters.
4. My last biff with this reamer is that it is suppose to be for 308 bore. Then why is the hole things so freak-in oversized?
Any way this post is mostly to help those of you that want to get a reamer. If you get one from PTG don't let the guy at PTG convince you to use his specs. When our on the phone with him he is going to tell you that he has made hundreds of these. Well he has made hundreds of the wrong. I attached PTG print of their reamer. Interestingly it is made for MidwayUSA. Not sure why that is on there print. If you want to get a reamer that will actually shoot worth a hill of beans get it custom made or rent one that has the proper specs.
1. Less freebore
2. Tighter neck for your brass of choice with no more then .004 of clearance (accuracy crazy people like me get it as tight as .002
3. Make sure its for your bore of choice weather it be 311 or 308. these are not interchangeable if you want the best results.