Appreciate the response. Here’s what I was looking at: https://www.ebay.com/itm/Diopter-Diana-rearsight-original-item-/283630465167?_trksid=p2349624.m46890.l49286
Are you referring to a peep sight? Diopter refers to the light bending power of a lens or magnification.
Great context there.
Quote from: Luthier Vandros on May 28, 2021, 09:43:08 PMGreat context there.Stick with the Williams! If you want something to do, sort pellets by weight and head size, then get a pellet sizer and make them all the same. Then lube your pellets, then give them names... -Y
To expand on the comments above, here's the underside of a Diana "Diopter 60" sight, next to one mounted on a Diana model 60 match rifle.Note the rifle has a separate mounting rail, not cut scope grooves. The rail has a flat top with a "serrated" texture of fine transverse grooves. The mounting "foot" on the sight (arrow) has the same pattern; tightening the big thumb wheel on the sight meshes the little grooves, and pulls the sight up tightly against the rails; it does not clamp on from the sides. It's an ingenious design - finely adjustable fore-aft location, quick to mount and detach, and always returns to perfect zero.Although the groove spacing is very close to 11 mm (Anschutz, Weihrauch, etc.), these sights typically do NOT fit low milled scope grooves, or work on an arched-top receiver. The old Diana models 35 and 50 sporter rifles also have the serrated rail and can use these sights, but as Hector said I'd hesitate to do that on a newer, more powerful Diana, and would never recommend this sight for any other make of rifle.
One more thing, Mike;It IS POSSIBLE to remove the square, threaded & serrated head element that locks the sight in place, and install it with the serrations ACROSS!So, when buying one, MAKE SURE the serrations are perpendicular to the axis of the bore/sight rail!;-)To Luthier.- a Willliams FP/TK AG or GR would be a good addition to any airgun. If you want something lighter, then go for the 5D.The Williams' peep sights can be as accurate and as precise as the top notch Olympic style match sights, what they are NOT is "repeatable"; nor are they "easy" to set the optimum point.So, if you are looking, REALLY LOOKING, into developing proficiency with iron sights, the Williams may just fit the bill as well as more expensive versions.BUT, that is a long trip that is not for the faint of heart.Keep well and shoot straight!HM