As popeye said, i is what i is, and thats all they are. Nothing more, nothing less.
I have had four of the 4-16's and three worked great. The one that didn't went back and became the fourth and worked.
Yep milky after 12 power but if you can't see what your shooting on 12, then go get a better, ($$$) scope. I still have one sitting on the safe thats been on more rifles than i remember, it works and if i need another 1-300yd scope i use it from time to time.
I also just got a centerpoint 6-32 for a 762.39 zombie saiga and it works fine but i don't expect it to shoot long range.
Good scopes are good scopes. But if a cheap scope will work for what your doing, take that money you saved and buy another gun or ammo or gas for hunting.