going to take a look at a remington m1903a3 today. Any advice on what to look for? Unfortunately I don't have a gauge, but the guy posted pics showing TE and Muzzle to be at 1. I also know that it would be nice to have a 4 groove barrel as opposed to a 2 groove barrel (but that the 2 groove ones should still be accurate). I think that the "low number receiver" problem is only for the earlier 1903s, and that the problem was corrected by the a3 release? can someone confirm that? would a serial # in the 4 mil range be considered safe? thanks for any pointers you can provide.