I'm wondering if, through you experiences, you have come across scope rings with cross bolts that are a few thou narrower than the M1913 spec? The reason I ask is because the scope rail that came with my Barnard P action has slot widths of .2055-.203", which is about 3 thou narrower than the M1913 spec. I love my EGW Tactical rings, but their cross bolt is .206". I'd rather not modify anything, especially if some cross bolts seem to be machined a little on the small side. Thanks all!