I bought a kleindendorst recoil lug jig and it seems to be to tight. I measured my factory recoil lugs and the measure 1.096 and depending on how I measure the jig it is about 1.086 but it seems to have a bur (not a real good true machined surface on the sides) So , I have two questions can I stone the fixture so that it fits better and also is the most important thing to have the recoil lug exactly centered to the receiver or just the same each time in reference to location? I was going to try the nitrating process on a 6.5 caliber which requires the barrel removal and replacement. Thank You, RW