I recently purchased a No4 Mk1 from Royal tiger imports that was a B grade with good bore, after cleaning the Barrel thoroughly I can see 2 groove and there is a asterisk above the barrel, I’ve been told that means there’s rust inside the barrel. Will this damage the barrel further if I shoot it on occasions? Also the receiver and barrel have matching numbers but the bolt does not. Will that cause bad headspace with this rifle? Also the receiver says “ROF” and a letter X followed by 2 serial number.

Thanks
Information
Warning: This is a relatively older thread
This discussion is older than 360 days. Some information contained in it may no longer be current.