Apertures for Globe front sights?

Discussion in 'Competition Shooting Forum' started by LDBennett, Dec 9, 2012.

  1. LDBennett

    LDBennett Well-Known Member

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    I notice you can get at least two different style apertures for front globe sights: A suspended black donut style or a clear piece of plastic with a hole in it.

    How does the clear aperture even work if there is no contrasting color or ring or whatever (??) around the edge of the hole???

    Would a new pre-teen Jr NRA rifle shooter find the clear aperture confusing to use compared to the pretty standard black donut aperture?

    LDBennett
  2. JLA

    JLA Well-Known Member

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    The plastic insert usually is of contrasting color. Either yellow or orange (think shooting glasses) and they are favored among open sights competitors.

    I had a customer in with a Win 75 .22LR that was equipped with Redfield Olympic sights. Dual apertures. and he swore by the orange front aperture. He described it as aiming at the target without covering it with a set of sights. The eye naturally aligns with the apertures and the lack of a contrasting aiming device, as in a post sight, gives your eye only 1 thing to focus on.. the target.

    it makes precise open sighted shooting easier.
  3. aa1911

    aa1911 Active Member

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    hmm, I never used the clear ones but I know the suspended donuts work great, used them in my Anschutz (64 sillouhette) and my Win 52. The winchester has Redfield sights also. Mostly shot NRA targets and occasionally international (small bore), I'm assuming he's using the same small bore targets?

    Out at that length, I would think there would be more than enough contrast with the hood especially casting a shadow over the front aperature/disc.

    Haven't shot mine in almost a year, need to dust it off!
  4. 300 H&H

    300 H&H Active Member

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    LD,

    The clar appetures work because the hole in the middle is actually a tappered hole, and when you look through it, it appears to be a black circle, as the tapered edges are dark when you are using them. Champions choice is where I got my set, and it comes in a revolving idex made of lexan, with 6 differend sizes of apeture holes. There are also front appetures that are infinately adjustable, so you change on the go if you like. They use two lenses with a rubber tube suspended between them. As you change sizes, the tube is squishes between the lens's such that the hole size changes as you turn an outer ring. These are not how ever, low in cost.

    I prefer the clear type over the suspended metal inserts. My daughters who are teens like the clear inserts as well.....Our 4H shooting sports club has most of it's rifles so equipted.

    Regards, Kirk
  5. LDBennett

    LDBennett Well-Known Member

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    Kirk:

    At present I got the gun all set up with metal inserts. The 2mm seems fine for the short barrel of the CZ Scout. But we are having two problems: my eyes and my grandsons shooting ability at this point in time. We are trying to zero the rifle with a diopter that includes an eye correction lens and an adjustable peep hole. My eyes are such that the target is really fuzzy even when I compromise the eye correction setting for the front sight hole and the target at 50 feet. My grandson has yet to shoot consistently enough to zero the rifle himself.He is less than 6 months into this NRA shooting and had little gun experience before that except for air pistols and that was only a few times. He'll get better with practice but consistent equipment has to help.

    So I have gone back to the rear peep that came with the rear Brno sight. I did not have this eye problem using a regular rear peep when I zeroed my Kimber 82G. I guess the diopter just will not work for me. I have yet to return to the range and I can not let him use the gun until I get it zeroed for him. His next shooting session is Thursday. Maybe I'll get to the range before then (??). Its not a big deal as the range has guns he has been using. I just wanted to get him into the same gun, the same shooting equipment, and the same condition so he can progress. The coach has promised some one-on-one coaching with the new year for him.

    Maybe later we'll try the clear insert but for now we'll have to get the metal ones zeroed so he can use the gun.

    Thanks for your input.

    LDBennett
  6. 300 H&H

    300 H&H Active Member

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    Regards, Kirk
    Last edited: Jan 25, 2013
  7. LDBennett

    LDBennett Well-Known Member

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    Kirk:

    The Scout has a 16 inch barrel which makes the front peep size incomparable to almost any other setup on "big" guns. The 2 mm front peep does just what you said: Allows a band of white around the target. When I used the diopter the target was totally out of focus, not even close and the white band around it did not help all that much, when I got the front peep anywhere close to sharp. I do better with the fixed open aperture that came with the Brno rear peep sight. I could not use the Brno front sight because there was no adapter to make it fit the gun. The only choice was the ramp from Williams and a Lyman large globe front sight.

    Even with this setup the eye strain for me is too much. Eyes that need over 5 diopter correction for distance and have survived for 71 years do not take kindly to peep sights, at least in my case. Scopes are even hard for me to use after an hour or so of use.

    My grandson's sighting problem was solved by 0.25 reading glasses which he uses to shoot with and read. His eyes are 20/20 but he was complaining of eye strain which the optometrist solved with this minimal correction glass. The grandson says they are perfect for shooting. His accuracy problem turns out to be a flinch that he did not know he had. One of the coaches worked with him this last shooting session and determined what was wrong. The coach also wants me to modify the gun with a higher cheek piece on the stock so he can get his cheek on the stock so his head stops waving around and to inlet the rail in the forearm. This CZ scout was fine for him when we got it but he is growing (now 12 years old) and it really is too small and the Brno sight too tall. But he cannot yet handle the Kimber 82G I have. So we'll just have to modify the CZ's stock I guess.

    Lynn......