You should consider the following points when buying a scope :

• adequate magnification

• adequate glass quality

• an adequate reticle

• adequate scope adjustment capability

• sufficient recoil rating

• great after-market service

and when you go through the considerations list and check your boxes against scopes available to you, the number of scopes for consideration is reduced to a manageable number, and the probability of coming out ahead with a scope that can meet your requirements, is better.