Quote Originally Posted by speckles View Post
3) bore disc or range plate What are you referring to ? The bore disc decipher can be located in gunboards or milsurps descriptions. Very simple and just specifics of your rifle. Less is better in general. Gives barrel diameter and bore quality (Type 2 stock disk-defines throat and bore). If the bore exceeded a certain number it was done and replaced with another barrel. (Type 1 defines branch of service, unit number and some regimental number)
4) shot out barrel may be seen in a mark 3 on bore disc but..... a lot of those are still great. Bore mark of 3 can still be sub Moa. I am not good enough to tell difference between 1-3 with my shooting But a 1 will have better collector value Probably
Another point is that you can't always trust the bore condition marker. Just because it left service with that condition bore doesn't mean it currently has that condition (not to mention those scummy people who switch out bore disks to a better one to make it sell for more).