I shoot this Savage .17
My scope is not under your $300.00 limit but I have another on my CZ .22varmint that would fit your needs perfectly, although not for sale.
A Bushnell Trophy 6-18X is $269.95 new and is one heck of a scope for that price IMHO.
Recently at the Brandon Gun Show I saw the fellows looking over the new BSA sweet .17 scopes. Apparrently the bullet drop is built right in and you just turn the distance dial and bang, dead gopher every time with no holdover.
Don't know if it works but it sounds interesting, just might try it someday.