Scope is a Hawke Sidewinder 30 4-16x50 with ill mildot reticle. I hadn't heard very much of this brand, but after researching them a little on various sites-(They have quite a following with the air-gunner crowd), I thought I'd give one a try. So far, I have no complaints whatsoever. No defects with quality or function yet, it passed the box test, and returned right back to zero. The glass is comparable to my Weaver Grand Slam models, and at under $400.00, is a real good value if it can hold up to my abuse.
The 0 moa base and low(.935) rings are alloy steel by TPS, and the quality is top notch. I didn' t know they made a super-low height ring at the time, or I would have went with those to get the scope down a little lower. To add a little note about the precision of the base and rings, (in addition to the luck of getting a receiver which appeared to be properly drilled); my first shot on the paper at 100 yards was 3.25" high x .75" left of center. I have never hit that close on a completely un-adjusted sight-in at 100 yards.
I adjusted zero while breaking in barrel, shot the box, and fed it 168 gr Hornady AMAX Match, Federal GM Match, and Black Hills Moly-coated Match ammo. Largest group measured .93"- Hornady, with the best 3 shot group at .67"- Black Hills.
I plan on fitting an HS Varmint stock, Harris bipod, and oversize bolt handle. Right now, couldn't be more pleased with this rifle!