I ordered the
NECG receiver-mount peep sight from Brownells and mounted it on the 9.3x62 550 FS. The sight is adjustable for elevation and windage, though roughly. The aperture itself looks like a classic lollipop with a hole in the midddle and the stick threaded. Screw it down 180 degrees (and fix with the set screw) and the group at 100 yards moves down about an inch. For windage the left side dovetail claw can be adjusted then fixed with a set screw, and the right side screwed down tight with a quarter. Rough, but serviceable.
The sight is protected by wings on the side, similar to the M-14 sights and has a hole big enough to "ghost" - not small enough for any kind of target work. I am thinking about threading the hole for a smaller screw-in aperture, but haven't done anything about it yet.
Because it's above the line of the original sights, the front must be replaced with
a higher one also made by NECG. I started with the brass-faced one thinking I could file it down as necessary. But I found I couldn't see it under the lighting at the 100-yard indoor range where I mostly shoot. I eventually filed it into an undercut without the brass but it was still vague to these old eyes, so I measured and guessed and bought the 0.296" red dot front. Real close using center-of-mass aiming, but not quite. I filed a bit off the lollipop handle and got one more inch lower and it works just fine. No idea how it would work on your rifle or any other caliber, but with mine I am now shooting 3 to 4 inch groups at 100 yards off the bench and am pretty well pleased.
The reason I decided to go with iron sights on that rifle is the FS humped stock really doesn't work very well with a scope. I've got one on the 6.5x55 FS rifle, but it's a stretch for someone who learned to "weld" the cheek to the stock. At some point I'll have to do something about that rifle too, but for now I'm having fun seeing what it will do off the bench, and these iron sights just aren't good enough for that kind of thing. They are perfect, however, for using the 9.3 to control the elephant population in Southern California.
-Don