yakfisher,
I used the medium QR matte rings and I havea LeupoldVXIII3.5-10X40 on one of my Encore's and the Burris Fullfield II 3-9X40 on my T.H. Omega.
My best loads for my Omegaare the 300 Barnes MZ w/110grs. 777 and the Barnes 285gr. Spit Fire.
My all time best bullet/sabot you can not find any longer was the 289gr. Remington Copper Solid. This bullet would give me MOA groups consistantly @ 100yds. with magnum powder charges. I have about 60 rounds left of these and I'm saving them for hunting purposes only.