My Burris Bases and Signature Zee Rings came today from Midway. I soft assembled one set on my 12-F/TR, and they went together without a hitch. Then on my 10-FP the screws wouldn't start. I was afraid of this, but forgot to order a tap from Midway to chase the threads. It looks like some over spray from the finish coat Savage uses on the 10-FP got into the screw holes for the bases. Savage doesn't use plug screws. I've heard of others having this trouble. I called Savage to ask what the thread size was, and the woman on the other end rattled off 6-48. Has anyone else ran into this? I just want to be sure before I order a tap. It doesn't say the size anywhere on the literature that came with the bases and rings. Bill T.

they should be 6-48. Good Luck

The diameter of the base screw should mic out at about .136 and there should be 12 threads to a quarter inch.

Thanks, that is what they check to. Bill T.