Hi, newbie here looking for a scope

Hi all,
Last year I bought a Crosman Vantage air rifle with nitro piston and put a Leapers UTG 3-12x40 AO Hunter Rifle Scope on it. I figured a scope that cost more than the rifle and was supposedly rated for springers would last. I guess I was mistaken. I've put about 500 rounds through it since November 2015 and yesterday the reticle started spinning in the scope. From what I understand reading online the scope is toast and it's one month out of warranty :-( .

Is there any scope out there that will hold up longer on this piston rifle for under $150? I'm pretty disappointed in Leapers now.