Over the weekend I installed a new McGowen 6.5X55 barrel onto a Savage 110. I stripped the bolt and screwed the barrel down until it touched the Go gauge. When I put a loaded factory round in the chamber there was tight, crush fit on the factory round. I readjusted the barrel to get a slight crush fit on the factory round and checked the head space with a no go and the bolt would not close. So my question is, is it normal for for a factory round to be so much longer than a go gauge? Thanks for any insight.