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Tube sight
Dec 22nd, 2025 at 5:38pm
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Thinking about a Tube Unertl for club offhand 200 yard steel matches. Target is the NRA Ram same dimensions as lever silhouette target hung from chains. Hit or miss 40 shots.

Have been shooting this match very long time with a CPA 38/55 Post and Bead front Tang rear with adjustable arpeture. My average scores started around 32 hits improved to 36 staying at that level until about 70 years old. Now 78 years old scores average 32 to 34.

Difference is used to get clear focus on the front small bead, settling off swinging the rifle into the target could pick the exact spot I wanted on the target & break the shot. Calling the strike exactly where it hit. We run 3 shooters in a relay, off relay 2 with spotting scopes &  spotting board with push pins 3rd is the score keeper. 10 shots then switch. All finished move to the next Ram 4 hung for the match,

Now my eyes don't focus front as sharp as they used to. Fuzzy front means good chance of miss reading elevation, targets body is about 2O inches high. My offhand groups were about 7 moa or 14 inches high. Windage not as important target much wider than high. Shooting at the whole target not picking a spot makes it more of a shotgun game. Sending a pattern down range some hit others don't.

Using low power scopes Unertl 3 x small game or MVA 5 x can hit high 30's again 36-38 strikes average. The scope can give a distinct cross hair and clear sharp focus on the target. Irons with prescription glasses it's one or the other not both.

Long story need a simple answer. Does a tube sight improve vision to allow more focus depth same as a magnifying sight. Match rules no optics, Tube may or may not be allowed, there's no magnification but acceptance remains to be seen. Not worried about it we allow non conforming  outfits, not eligible for match place or awards. 

Reply's with advice appreciated 

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marlinguy
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Re: Tube sight
Reply #1 - Dec 22nd, 2025 at 7:00pm
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It does for me if the tube sight has interchangeable apertures in the front. I bought an Unertl off our for sale section here and it was missing the front aperture cell. I found an old Parker Hale globe sight in my parts bin that had a messed up dovetail. I ground the dovetail off and polished the diameter down slightly until it slid into the tube sight. I use a aperture that's just a round aperture and pick one that the bullseye just sits inside of at distance. It works great for targets, but I think for silhouette a post might be more appropriate.
  

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Re: Tube sight
Reply #2 - Dec 22nd, 2025 at 7:42pm
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This sure sounds like a fun game! 
Val, I'm confused about your tube sight. All that I have experience with just have a threaded hole for the apature/merit disk in the back.  I have seen them with baffles towards the front to control light.  And the tube sight is used with a conventional front target sight. 
One of the great advantages of a tube sight is the height of the center of the sight is identical to a unertl scope and the windage and elevation adjustments as well. 
So the fit of the rifle to you is identical with both iron and scope
  

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marlinguy
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Re: Tube sight
Reply #3 - Dec 22nd, 2025 at 7:47pm
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830singleshot wrote on Dec 22nd, 2025 at 7:42pm:
This sure sounds like a fun game! 
Vall, I'm confused about your tube sight. All that I have experience with just have a threaded hole for the aperture/merit disk in the back.  I have seen them with baffles towards the front to control light.  And the tube sight is used with a conventional front target sight. 
One of the great advantages of a tube sight is the height of the center of the sight is identical to a unertl scope and the windage and elevation adjustments as well.


How does that work with the rear aperture, and front sight? When you raise or lower the rear the front globe sight isn't centered inside the tube anymore? I tried it on one of my scoped single shot rifles and it didn't give me much elevation change when using it with the globe front sight.
Seems like the front mount would need to be as close to the front end of the tube to work properly? If back much from the front of the tube the front end will lower as you elevate the rear of the tube.

  

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Re: Tube sight
Reply #4 - Dec 22nd, 2025 at 8:29pm
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Good points than I need to look into. On Unertl's think I will look for a manual or spec's how they are sighted Post and bead X hair either one. I use either without problem on modern Silhouettes as well as a single dot reticle. Have used front arpeture a lot too, Smallbore prone. But it's on a bullseye target from a steady position. Easy to get a centered ring of light around the nice nice black bullseye.  When I've tried arpeture on Silhouette it's back to can't place the bullet on a spot. 

Side note some have asked me why not just use a scope if it's allowed, not for score. The match has been running monthly since the early 1960's at the Fairfax Va club adding Cavalier in Montpelier Va 1980's both same rules Single Shot cast bullets only . Then latter adding Rimfire at ether 75 or 100 yards monthly . All 4 monthly matches targets are scaled to be identical. Can handle 28 -32 shooters at a match depending on the range width. Often full in good  weather.

Number of us believe if magnifying scopes are allowed soon  they will be on most rifles and change the match forever. Many matches have been ruined by equipment races. Modern Silhouette around here has for sure. Tube's that's possible too but they don't magnify. And will still require a competent shot to score well.

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Re: Tube sight
Reply #5 - Dec 23rd, 2025 at 12:01am
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Not sure if it would be allowed,  but I made a 30" tube sight out of weldable tubing. MVA Hadley on the back with acrylic on the front. Mounts to standard scope blocks. I sodered on a pope rib, and ground down a emt fitting to screw aperture into the front. Makes the sight picture much more clear than a separate front and rear
  
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Re: Tube sight
Reply #6 - Dec 23rd, 2025 at 6:20am
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Thanks your response that's what I wanted to hear. 

I have two MVA Hadleys and it's easy to make an adaptor to mount on any tube. What about the front of the tube, Post and bead, crosshair, interchangeable  ?  I could make an adaptor to fit most target fronts & use it's inserts for any number of sight pictures.

Meanwhile looking on line this morning to see how Unertl tubes are set up.

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Re: Tube sight
Reply #7 - Dec 23rd, 2025 at 6:31am
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Well that was quick, on line Unertl's origional details.

Rear eyepiece is threaded for " most conventional arpeture" front of the tube open. It uses the rifles regular front which needs to be raised to suit tubes height.

That makes it very likely to be allowed in any iron sight match it's just a tube with adjustment to move mounted conventional rear arp's. Same scope mounts and adjustment as a conventional Unertl. 

J Hands idea mount the front on the tube instead of the gun sounds like a good one too. Avoids modifying the rifles regular front sight.

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Re: Tube sight
Reply #8 - Dec 23rd, 2025 at 7:39am
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I would like to see some pictures when your project is complete!


Merry Christmas all!

Tom Klinger
  
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Re: Tube sight
Reply #9 - Dec 23rd, 2025 at 8:54am
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Boats, parker hale use to make a couple of models of tube sight that were the same length as a short scope. If you could find one on this side of the Atlantic. I now what you mean about equipment races cause you know who that we shoot with has already been caught using a magnifying lens set up if they allow scopes he'll have a 45x leupold in no time.
  
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Re: Tube sight
Reply #10 - Dec 23rd, 2025 at 9:51am
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Thats true, I remember a silhouette committee meeting at the Rimfire nationals were the more expensive equipment crowd wanted to allow custom heavy barrels on Hunter class guns.  Anything was allowed in the unlimited class, total gun weight  only restriction. One guy said "everybody knows factory smallbores barrels are junk" 

Hunters were over half the guns used our club and many others . Committee allowed replacement barrels, triggers, stocks, on factory Hunter class guns maintaining the lighter weight restriction 

What developed was top shooters and wannabes went to expensive full custom Hunter class guns, using them in both classes. Two type gun competition fell apart as did competition with entry level guns   

My club, were I was Smallbore match director, experienced a slow decline in attendees with very few new coming into the sport. Ed result modern rifle silhouette is dead our club.

Good thing Lever Silhouette and Single shot Ram Bash matches flourished with much higher attendance than modern guns had experienced 

Strict equipment rules were important and contributed to growth. 

Having said all that we do need to accommodate older shooters with declining eyesight.  Solution now is OF Class. Separate prize structure for shooters over a certain age. It's used not much, I don't want to give my true age out ! 

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Re: Tube sight
Reply #11 - Dec 23rd, 2025 at 11:17am
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Boats, I agree I think if you're 80 or older you should be allowed period correct optics say 6x or less that way nobody younger can get the advantage or someone can mount a 20x unertl and see the runs in the paint down range. Call it the o.f.  or s.o.f. class if you want. As someone who just turned 59 I've got no problem with keeping you mentors in the game. 

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Re: Tube sight
Reply #12 - Dec 23rd, 2025 at 12:48pm
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Here's what I built.  Bought a 36" piece of 3/4" weldable tubing. I sodered and end cap on and drilled and tapped it for the Hadley. On the front, i bought an emt fitting that is threaded,  i had to grind the tube down a bit to get it to fit. I was going to solder it on, but discovered the fittings are made of pot metal with a melting point below soder, so I had to use epoxy to hold it on. I sodered on a piece of brass for a pope rib. I coated the inside with flat black acrylic paint, and cut 2 foam baffles, and pressed them in. For the front insert, I cut and drilled a piece of acrylic. 

Definitely not as nice as others I've seen, but with my limited space and tools, it works great
  
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Re: Tube sight
Reply #13 - Dec 23rd, 2025 at 12:48pm
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Cont.
  
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Re: Tube sight
Reply #14 - Dec 23rd, 2025 at 12:49pm
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The Unertl tube sights that I have used all required a separate front sight and its height is critical to keep the front aperture somewhat centered. The first one I had which I sold was a 1” and was shorter than the 3/4” tube I currently have. Evidently it used different front sight ramps for different distances. A good solution for my 3/4” tube was to use a Unertl style dovetail front sight adapter such as the ones sold by Steve Earle. I initially mounted a Lyman 77 on a short adapter but it was too short. But a 77H was too tall. Then I found a sight with a larger diameter that has a glass insert with a black etched circle. It is the correct height for 200 yds and very easy to acquire. I had made a long tube sight with a Lyman 17a (with base ground off) inserted into the front of the tube. It could work for bench shooting but since all you could see was a small opening it was almost impossible to even find the ‘moving’ target shooting offhand. 

Jack
  

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