Mine is a Hollis & Son, Birmingham 577/450 rifle.
I have no need to hunt anymore except to take a particular rifle to the field. My 2016 elk hunt will be with this Hollis rifle. I load 35 grains IMR 4198, lots of teddy bear stuffing and hollow base cast bullets for 1,350 fps. My aging eyes would do better with an aperture sight.
I'm seeking an aperture sight fitted to the rear of the Martini action.
Referrals and suggestions are appreciated.