Sakofan: Here's what I ended up with after originaly buying for a Browning Bar. I bought a Nikon Tact. 30mm 2.5-10 mil dot scope and Talley low rings & bases. This fit real nice and low on the Bar. The more I looked at the Bar the more I didn't like it. So I traded up to the Sako 75 in 7mm08. I asked if the gun came with scope mounts like the Tika and the gun shop owner said yes. Well when he sent for the box from the back, no scope mounts in the box and none in stock. He said he would get me a set and I asked for 30mm if I had a choice. So he ordered in 30mm low optilocks and called me when they came in. So for no extra charge I got those. I most likely paid for them with the gun price of $1,100.00 but he was real good on giving me full price back on the Bar. I never shot the Bar but had it for 2 months. Anyway I talked to Talley about his Sako mounts and it seems to mount on the same groove on the action as does the Sako bases and then converts to the picatinny base so that his rings will fit. I didn't buy the Talley but concluded that the Talley system would set up as high as the Sako system, not real sure about that but if it didn't set as high it would not be very much lower being I had the low Talley to compare with at the time. Talley was for sure higher in the ring verses ring comparison. I don't think Talley could have been low enough in the bases to more than make up for their ring being taller than Sako. Don't get me wrong: I do think Talley is a stronger system!! Being there was no advantage in it getting my scope lower and I don't have a 30mm lapping tool the Optilocks for no extra money won out for now. I already read about the screws being easy to round out and feel with this foreknowledge and some Red Locktight, proper cleaning and cure time, I hope to make it work being the recoil is low on the 7mm08. Thanks for your teaching me about this Optilock problem on other threads. I would not buy these from scratch if the man had not ordered them in and gave them to me. I may have went with Talley unless I found some somewhere else that would have got my scope lower of good quality. Maybe Talley bases and some other well known brand for quality rings that are lower than the Talley?? I don't know what Sako had in mine for the "TALL" Optilocks? Mine (LOW) look like a 56mm would clear & most likely the heavy barrel & MED. ring should clear most any scope too...???