I'd say get a variable power so that you can provide yourself with a magnification in the area below 10x as well as above 10x.
You'll find that if the temperature rises much, magnifications above 10x may become VERY unusable due to heavy mirage. With something like a 6-24x or 6-18x it leaves you a fair margin of useable magnification down around 10x and lower when the higher magnifications just blurr out.
As for the Tascos, I'm not too keen on them. I do have good experience with the Bushnell Elite 4200 and 3200s though, I have two scopes in this line, one is a 6-24x B&L 4000 which is the older line before Bushnell picked up the "elite" line. I also have a Bushnell Elite 3200 10x Mildot which I use on my 300WinMag while I'm working up loads for the gun until I can get a more substantial target scope.
I have only two gripes about my 6-24x B&L Elite 4000, it's a LONG sucker at 17 inches and it's fairly limited in it's total elevation handicapping it to how far I can reach by dialing in my elevation. The 6-24 only has like 36MOA between extremes of travel which is pretty small once you figure for the reticle being centered in it's mechanical movement and then achieving a zero which can add to or subtract from your useable MOA for elevation. However, the other B&L/Bushnell Elite 3200 and 4200 scopes do not have this limitation in terms of elevation. They have good clear glass with what have been repeatable mechanicals. Most are in a similar ball park price range to that of the Tasco SS sight.