avoid, Bsa, and barska, even though I have 1 and 2 respectively. they are hit or miss. nikon is an excellent scope for the money, so is mueller. I don't know the power you are looking for , but the bigger the power , the bigger the scope. I like a huge scope, and huge power. i have found the Tasco Varmint series, to be quite nice for the money. Also Pentax, and the bushnell , 3200 series, 4200, and Dawn and dusk series, are very good. A good perennial scope in rimfires, is the simmons 22 mag scope.