As for what others have said, I tried, TRIED , to give nc star a chance, on 3 seperate occasions, in 3 diff fields of work to include spotting scope.
All complete and total junk, I will never get another NCstart product, not even if given to me. I put them right below BSA in quality.
The genious of that scope I have listed with the picture of is this; it has actually been around for a long time, I think about 20 years now. They do not make it a lot, they make it in short runs, sometimes they make it in the hard blister pacs, with muffs and glasses, for the big boy stores.
It has a great track record, and is reliable, and requested by the big box stores.
Things like, air rifle rated, adult rated, spring piston rated, mean diff things.
air rifle rated means,it absolutely at it's best, and is mostly designed, to work inside of 25m, since the majority of air rifle matches are under this distance; it is designed to take the slow push, of the recoil of most air rifles, adult rated means, designed to take the higher amounts of recoil, most of the really kids rifles are 600fps and slower. Spring piston rated means, it is designed to take the smashing 2 way recoil of a spring piston drive rifle.
Put all together and it also means a totally diff thing; It is designed to take the recoil of an air rifle, that is break bbl , spring piston driven, and it is
designed to do this, with the full adult size and power break bbl/spring piston rifles.
theoretically , this is what all that means. Is there some industry standard
on this, that we can actually know and read what these amounts are? I have no idea, but what i do know is this, I have used this model scope for a long time, and they are tough, heavy solid steel objects , that can be thrown by themselves as a weapon, they are that solid. You'll see and feel the difference to a regular or centerfire scope, if you ever pick one up! I have never had one loose zero, they are pretty good in the repeatable dept., and the glass is decently clear. All on a scope that is smallish, and with an adjustable AO, down to across the room close.