Thanks for the info. I should have noticed that. One of the posters on the above linked chart claims to have the Mueller 8-32x44 and BKL 257 rings. Now here I sit with 1? rings and a 30mm scope which bites because I got rained out of work and got my scope and rings in the mail today I was going to head to the range. I wish I had checked this thread sooner. Oh well thanks for the suggestion on the BKL 300 rings. Oh, and my reticlebis mil dot.