Ok. That's fair in that a cantilever style mount could be used. Albeit eye relief adjustability and ability to single shot load might be limited after. That of course may not be a huge priority as it would be in actual biathlon.
Actual biathlon uses aperture sights, no scopes. Since the 1827 is designed for biathlon there usually is no need for scopes. Nevertheless, mounting a scope can be done with cantilever rings.
And for readers in general, there is no problem with regard to eye relief adjustability and loading single shot when using cantilever rings. Each of the rifles shown below are single shot models.
A closer view below.
