I would like to buy a set of gauges, but am a little confused about which ones to buy. Alot of people seem to like the Clymer gauges, they say they are more reliable for accurate readings. My problem is, should I buy .308 or 7.62x51 gauges. I have a poly and a LRB barreled action on the way and would like to be able to check these out. Does anybody here have gauges, and what is your preference. I see the CMP sells Clymer gauges, but they don't sell a field reject. Is there one? Any help and first hand knowledge would be very helpful, Thanks.