Peeps on a 22
Without question, the aperature should be as close to the eye as practical. With a kicker of course, getting hit has to be given careful thought. With a 22, get it back there. I have a Win 69 which I improvised to get a it back. On the left of the receiver I drilled holes and mounted a Weaver, one piece base that protruded toward the rear. I drilled, shaped and cut the rear of the base to fit a Lyman, forget the number, but I still have the rifle. I have a Lyman adjustable aperature, the type that had a rubber flange, making the outer edge about an inch across. Turning this outer edge adjusts the size of the aperature. In off hand shooting, which I have done a great deal of, I rest my eye brow on the rubber flange. This keeps everything solid and is quite a help in holding steady, as well as having a rear sight which is basically non-existant, because you just look through it and don't even realize it is there. It's a great combination.