So I did end up buying my XRS 4.5-30 from Omer at PlainSight Solutions, I must say he was a great guy to deal with and very helpful and I like to thank him for that. Right now I have the scope mounted on my Sako trg-42 in a Spuhr one piece mount and it all fit together just great. Once I get back from work I'll have a chance to take it out but so far I'm liking it, the turrel clicks are crisp and the other dials are firm and smooth. I'm loving the FFP and Horus h-59 reticle with mil turrets, I guess my only complaint would be the glass. It's good but I was hoping for a little better, seems at the higher magnification (25+) it gets a little darker. With the 3.5x21 ERS models you probably won't have that. Once I get some range time I'll have a better opinion on it but so far I think you are getting great bang for your buck.