You can sometimes find simmons 44 mags for under a hundred bucks. i have one on my sons 700 in 243 and it is a good scope for the money.
It' s a pretty clear scope and i have been surprised at how well it performs in low light.

go to midway i got a flier this week where they had refurb simmons pro 50' s on sale for like $50. same warranty . the stock number was 915-946.

they also had another great low money scope a sightron s1 3x9x40 for $129. sightron has the best warranty in the business. no questions asked replacement.
number was 268-061

http://www.midwayusa.com/


these were in a frequent buyer flier so i am not sure they are actually on the websight but you can ask. good luck.