I have owned a number of aperture sighted rifles over the years. At the moment I have a Miroku-made, 1895 Winchester in .405 Winchester with a Providence Tool Company Type 21 aperture sight modified to take a Merit adjustable iris peep. I also have a BRNO ZKK602 in .375 H&H, a ZKK600 in 7x57 and a CZ550 in .416 Rigby all with the pop-up aperture sights.

I am a big fan of aperture sights and hence I will be including one on the .500 Jeffery.

I was just concerned, with the cocking piece style, because I have read contradictory information about their use on heavy recoiling rifles - for example Elmer Keith, in his book 'Keith's Rifles for Large Game' says, when referring to the cocking piece aperture sights: "This sight position is too close to the eye on all rifles of fairly heavy recoil unless the stock be abnormally long."