My aperture sight setup on the CZ 452 Ultra Lux

Prompted by a post at RimfireCentral I’ve compliled a list of the sight equipment I am currently using on my Ultra Lux.

Setup:

• CZ 452 Ultra Lux in .22 LR (link)
• Klinsky Stock, beech with walnut stain (contact Denny at: ajakubec [at] aol [dot] com)
• BRNO Peeps (contact Denny at: ajakubec [at] aol [dot] com)
  • Iris Adapter to mount Gehmann (link)
  • Gehmann 510 Iris on rear sight (link)
  • Sunshade on rear sight (link or link)
  • Rubber eye cup on rear sight (link)
  • Lee Shaver inserts in front globe (link)

Notes:

• I’ve used the various inserts Denny supplies.  I really like the 3.2mm clear ghost ring.  But recently I’ve been trying the Lee Shaver “Lyman 20 and Anshutz Front Sight Insert Card” / LS004.  I’m still experimenting to find the insert(s) I like to use.  But I think I’m going to like them.  The images below show the hash # insert sandwiched with the thinnest post. I’ve only shot once with it and it was at a very dark indoor range.  I had a very hard time seeing the sight against a dark target.  You can see how the sights ‘disappear’ against darker backgrounds.  I tipped the post with some yellow paint, but it didn’t really help.  I may try white on some of the lines to see how if it makes the sight more visible.  But  you will want to note that the inserts don’t fit into the BRNO front globe right off the card. You will need to trim the tabs and file/sand down the edges a bit. I took a tiny set of locking pliars and glued some rubber strips to the teeth, to make a soft-grip. I then sandwiched a set of the BRNO inserts over the Lee Shaver inserts. I (very carefully) trimmed the tabs to match. I then just used a file to take off some of the edge. It takes 15 or 20 minutes fiddling to get it right, but the effort is well worthwhile.
• The target shot below was the first tight group (7 shots) I got with the Ultra Lux.  I was both conditioning the new barrel and getting the sights dialed in.  (I was using the Lee Shaver 2mm / 4 post insert.)  These would have been shots 40-46.  I was using CCI Mini Mags.  The distance was 25 yards.
• If I were to do it over, I don’t think I’d get the Gehmann iris.  It’s great for punching paper on bright days.  Even at my level of ability I get an improvement in accuracy.  But for dimmer conditions or hunting (which is what I really like to do), the stock fixed iris that Denny ships with the sight is perfectly adequate.

Trimming a Lee Shaver Insert to Fit the BRNO Front Globe

(Click on the image to view it at full resolution.)