I have a Puma 92 Scout in 45Colt with the Scout scope.
I am wanting to swap the Nikko Sterling 2.5X scope for a LER variable power pistol scope. I had one to try on it, but found the occular (rear) was too long and prevented proper ejection of cartridges, even if mounted on the forwardmost (rear) slot of the mount. Ejected brass would hit the occular and bounce back into the action.

The factory mount only has 3 slots (front and rear) on the mount to use. I wonder if there is a different mount with more slots would allow me to move the scope forward more to allow proper ejection of the brass?

Any ideas for a different mount that I could try? I don't have any spare mounts lying around to try out.