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Hot Topic (More than 10 Replies) Tube sight (Read 801 times)
marlinguy
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Re: Tube sight
Reply #15 - Dec 23rd, 2025 at 5:59pm
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boats wrote on Dec 23rd, 2025 at 6:31am:
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.

Boats


That's exactly what I did with my Unertl tube sight. The Parker Hale globe sight fit inside the front of the Unertl tube sight perfectly once I removed the dovetail on the sight and slightly polished the OD of the PH globe sight down. It's just a snug push fit, and the knurled collar that is tightened to keep apertures secured makes it easy to grasp and pull out when I change apertures from crosshair to peep.
  
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boats
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Re: Tube sight
Reply #16 - Dec 24th, 2025 at 5:30am
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Mounted couple of my external adjustment scopes on rifles yesterday looking at heights and possibilities. All would require a higher front sight to match a tubes height. Don't want to alter  the windage adjustment fronts of two CPA's each with two barrels. Closest to a height fit was a Unertl 3x small game on a Marlin 39a it showed a little bit of the original Marlin front Ramp Bead and sight hood. Not enough to work.

Seems to me Unertl tube with a slip in arp front is the solution. Have several Lyman 17 fronts, be easy to mill off the base and turn the sight nice and round. Then a turn a sleeve to fit in or around the Unertl's tube.

Thanks all, Looking for a Unertl tube now

Boats 

  
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Kansas Highwall
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Re: Tube sight
Reply #17 - Dec 25th, 2025 at 10:22pm
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We had an outsider show up once at a 22lr IHMSA match.One competitor had a tube sight on his T/C 14" bull barrel. He kicked our ass with all perfect scores then he moved on
Was he a ghost or a tube perfectionist?
  
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bnice
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Re: Tube sight
Reply #18 - Dec 26th, 2025 at 8:42am
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You maybe able to tap the 3/4” tube and add a Gehmann adjustable appurature to the end. I’ve made several long tube sights that way.
  
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RSW
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Re: Tube sight
Reply #19 - Dec 26th, 2025 at 4:22pm
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Just to throw in another approach to tube sights; below is the setup I use with a Cody-Ballard. The tube sight was a "new in the box" old Lyman that I bought from CPA some years ago. Seems they acquired several that must have been sitting on a shelf or years and I happened to score the last one they had.
Anyway . . . the tube sight has an extension tube attached which is machined at the front end to hold MVA globe sight inserts. It works for me.
  
Randy W
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boats
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Re: Tube sight
Reply #20 - Dec 26th, 2025 at 7:24pm
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Lot of experience in the ASSRA, thanks to all. Let you know how it works for me.

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