Many years ago I had a Tasco 6-18 target scope on my Heavy barrel Springfield target rifle, it had outside adjustments. return to battery spring, looked just like a big Lyman or Unertl work as well also. I did have a World Class 2-7 that would change point of impact 1" at 100 yards going from 2 to 7 power. I put it on my dads model 70 Featherweight and he killed a truck load of deer with it, it never came off of 2x and never had to shoot at 100 yards either, he thought it was perfect, a lot better than the old 4x Weaver he had on it.
A young fellow showed up at an egg shoot with Savage 223 and a Barska scope and walked away with a custom built AR that was first prize. There was a lot of high end equipment there.
An ADC guy I knew thought the Centerpoint scope with an illuminated reticle was the best for night hunting cats and coyotes on local sheep ranches.
If it works for you and you trust it who's to say your wrong.
