First off, I don't understand the choice of an M14/M1a for a long range precision rig, but that's a whole 'nother topic...
S&B is good, though they've had some QC issues as of late. Apparently there customer service is very good, so you will be taken care of if you do happen to run into any issues with your scope.
Personally, if I was spending that much money I would also look at Steiner, Khales, and the new Nightforce line (such as the BEAST). I was in the market for a high end optic twice in the past two years, and I decided to go with the Steiner 5-25x56 with MSR reticle, and the Khales 6-24x56 also with MSR reticle. They both seem to rival S&B in quality, at a much better price.
If I was to buy another high end optic today, I would seriously consider the NF BEAST. That scope has been getting rave reviews, I wish it was available for purchase last year.
Good luck on your scope hunt!