Originally Posted by CGS
A very many amount of scopes are specifically engineered and marketed for rimfire.
Yes, they're marketed for a specific Caliber, like 22, 17, AR, (BUT) they're marketed as such, because of the BDC. This is mostly because of how the "Dots/Hash Marks" are spaced on the Reticle, or a possible change of the Elevation Turret to correspond for that Caliber. Depending on Scope Maker. The Tubes, innards and Len's, Coatings, will be built/applied the same. However, on some Scopes a simple call to Company gets a Caliber/Bullet Chart to adjust for BDC.
Example. A Leupold Rifleman won't work on a 22LR very well, because of the Parallax setting of 150yds. It will work on 17HMR, 22Mag, or any Centerfire Caliber very well, be it Semi or Bolt Action, due to the Shooter knowing they will use these Calibers for the longer distance.
Many Magnums taking exception, just because of their brutal recoils on the Action, and/or Shooter.
I wouldn't use a Rifleman, even if it says it's safe, on a Springer Pellet Rifle, due to it's abusive nature of how the Spring recoils twice with each shot.
Many Scope Makers nowadays have upgraded their quality, for using their Quality Scopes on Springer's for this reason compared to complaints from years past.
However, many a Hunter/Marksman has/can use a Pellet Rifle Scope on their Rimfire or Centerfire Rifles and have excellent results over many years, because of the Scope's ruggedness.
I own some Burris FullfieldII 3-9x40 Scopes. I got them as the combo-packs. One Scope is for Centerfire, the other Scope is marked "Rimfire". Both scopes look exactly same, with same BDC hashmarks. Only difference(s) is Rimfire marked Scope is Parallaxed at 50yds, hashmarks re-calibrated, and made in China. Would I use this Scope on a Marlin 44Magnum. Yelp. Had it sighted in at 50yds for a Brush Gun. Held up just fine under that little Thumper, until I sold Rifle, then I put Scope on a Ruger 10/22 I've owned since new from 1971.