Longwalker
AH elite
The red dot sights seem to have the largest following for shooting driven game in Europe. I saw many in use while hunting wild boar in Germany. I did have a battery fail ( borrowed rifle) while shooting driven wild boar, so agree with the idea of changing batteries at the start of an important hunting trip.
My guess is that the smaller reflex sights could be mounted on a double rifle without changing regulation. I'd do it.
My guess is that the smaller reflex sights could be mounted on a double rifle without changing regulation. I'd do it.