Well, I will give you my opinion. 3 years ago I purchased a Lazzaroni 308 Patriot, which is a little more gun, both performance and recoil, than a 300 WSM. The owner of the gun shop talked me into going with a Swift scope on it. I put the Swift Premier 4 x 14 x 50mm with the lighted recticle. In looking at the scope in the gun shop it looked just as clear to me as the Nikons and Leupolds, but was a little cheaper so I went with it.
I hunted the 1st year and took 3 deer with it and was very pleased. The next year before the season I took it to the range to check zero. 1st shot was good, 2nd shot was way off high and right (thought it was a flyer) 3rd shot was way low and left. Short story was that I could never get back to a zero, don't even consider grouping. I guess it couldn't stand the recoil and there was a recticle problem.
Called the dealer and he said bring in for a free replacement, which I did, however he didn't have the same scope in stock and would take about 1 month to get one in. So I bought another scope (Zeiss Conquest) and put on that gun, and when I got the Swift back I put it on my son's 264 winmag. I will say that the Swift no questions asked full replacement warranty is very good, but getting a free replacement is sort of a problem if they don't have it and you need the scope.
Anyway my son used the scope 1 year and was dissapointed. Even though crystal clear in daylight, he had problems in rain and fog. As well, the lens coating is not very good as when you looked toward (not into) the sun it would flash out and you would only see basically a rainbow of color. He sent the scope back in to Swift with a complaint stating the above and they again gave us a brand new scope. However, the same problems persisted, so I sold the Swift and bought another Zeiss Conquest.
I also bought a Swift for my father-in-law's 30-06. It was the cheaper model Swift, not the Premier. He has been tickled pink and had absolutely no problems with it.
So, my thoughts are if you are going to put it on a light kicker it should be OK, but you won't get the best performance in low light or in incliment weather. I would qualify this as my opinion and is not supported by my father-in-law.
However, I really feel that you can get a better scope for the money.