Frank's right. If these are for heavy barreled varmint rifles, you're on the right track. But these have too much magnification, length and weight for a sporter rifle in my view. For sporters, I prefer 4-12x40AO although 3-9x40 is very popular.I've never owned a Millett, but I've got two Vortex Viper PA 6.5-20x44 mildots and they're great scopes for their price range. I have one on a Remington 700 VLSS .stainless 26" heavy barrel .204 Ruger and the other is on my Mountain Eagle .223 Remington varmint rifle with Sako action, 26" stainless steel fluted Krieger heavy barrel and HS Precision stock. They're a joy to use. The elevation and windage adjustments track reliably and repeatedly and because they've got side focus parallax adjustment, the objective bell housing is relatively small which allows you to mount it close to your barrel without using high rings. (I use Burrix Xtreme tactical bases and Burris Xtreme 30mm tactical low rings and they mount the Viper nice and low with plenty of clearance for the bolt throw.) The Vipers are made in the Philippines and they're well made. Plus, Vortex has a terrific warranty. The elevation turret also has a spring loaded zero stop adjustment. I think they have 60 MOA of total elevation adjustment, which isn't a lot but it's better than many high magnification variable scopes.As Desert Fox pointed out to me in a past post, the Vipers are about the quality of the Nikon Monarch and I agree. The glass is nice, and gives a very bright picture with nice contrast. The only criticism I have of the Viper is that its eye relief is a bit short and I wouldn't want to use it on a rifle with high recoil. Its eye relief is fine for use up to .308 though, and perfect on the .204 or .223. If you mount it on something larger than .308, make sure you have your rifle firmly settled hard into your shoulder and wear some protective shooting glasses in case it comes back and tags you.Until fairly recently, the Vortex Viper mildots were $399 but you could get them on Optics Planet for $358 shipped if you posted a product review and got their 10% off coupon. Now they retail almost everywhere for $429. CameralandNY has a special deal on the now discontinued 6.5-20x44 wide duplex scopes for only $279. I prefer mildots, but if you don't mind using duplex, that's a great price but order quick because they sell out fast. http://www.cameralan...texviper6-20x44
I've heard good things about the Hawke Sidewinder but don't have experience with them. Red can tell you all about them.