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 10 Target Shooting Sight Micrometers (Read 4615 times)
Cat Man
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Target Shooting Sight Micrometers
Apr 27th, 2020 at 7:44pm
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Model 1901 Krag rear sight adjustments was not so precise until civilian riflemen created a device which could raise or lower the sight elevation in half minute increments.

There were three popular types for the Krag. Sold by P J O'Hare a well know shooter and vendor. 100 years after there invention, vintage rifle shooters still know them as "O'Hare Sight Micrometers".

  
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Culpeper
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Re: Target Shooting Sight Micrometers
Reply #1 - Apr 28th, 2020 at 2:10pm
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I bought two of these way back in the day.

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butlersrangers
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Re: Target Shooting Sight Micrometers
Reply #2 - Apr 28th, 2020 at 5:33pm
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Thanks 'Cat Man' for starting this thread and sharing your neat photo.

The late Joe DeChristopher use to list some of the O'Hare sight devices (mainly for the 1903 Springfield) in his catalog.

Pictured item #5 is for the U.S. Krag rifle.
« Last Edit: Apr 29th, 2020 at 9:57pm by butlersrangers »  
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TexTenn59
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Re: Target Shooting Sight Micrometers
Reply #3 - Apr 28th, 2020 at 11:16pm
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Culpeper wrote on Apr 28th, 2020 at 2:10pm:
I bought two of these way back in the day.

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I bought mine from Ray-Vin, I see he is retired and selling out what little he has left in stock.  Glad I got mine back in the day...
  
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Culpeper
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Re: Target Shooting Sight Micrometers
Reply #4 - Apr 29th, 2020 at 6:05am
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I bought mine from Ray-Vin too.  Those were to only two places I could find pics of the micrometer.

I think he has been retired for five or so years.

Now to get one of the fancy smokers just in case I get a rifle that I need to blacken the sights.
  

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HeyJoe
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Re: Target Shooting Sight Micrometers
Reply #5 - Apr 29th, 2020 at 6:38pm
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The micrometers will also work on a Krag as well as a Buffington trapdoor sight
  
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butlersrangers
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Re: Target Shooting Sight Micrometers
Reply #6 - Apr 29th, 2020 at 9:02pm
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'HeyJoe' - Beautiful items & photo!

The British had similar precision sight adjusters:
  
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Cat Man
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Re: Target Shooting Sight Micrometers
Reply #7 - Apr 29th, 2020 at 10:29pm
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Here are two more views of the rear sight micrometers for more detail.

The one in the center is imported from England as seen in the lower corner. PJ O'Hare imported a number of target shooting items that were identified with his logo. Bill Brophy referred to that micrometer as a "Convoy" Micrometer in this Krag book?

The Ideal Model cost less but was a bit more difficult to use. They all require about three hands to use them effectively when shooting prone with a good tight sling while the clock is running on the firing line.

The other O'Hare micrometer in the collection is vintage ex military rifle team property. It has been twice marked and numbered "USCG #24". 

As a long time target shooter, I like collecting these crazy little marksmanship items.

  
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HeyJoe
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Re: Target Shooting Sight Micrometers
Reply #8 - Apr 29th, 2020 at 10:56pm
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P.J. O'Hare catalog NO.8 ,no date, lists the micrometer for $5.00,  the sight cover for $1.00.  If in a "special hurry" your payment and order could be sent by telegraph.  We're not that much quicker today.
  
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butlersrangers
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Re: Target Shooting Sight Micrometers
Reply #9 - Apr 29th, 2020 at 11:55pm
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Some wonderful stuff!

I have to ask. Were these simply precision/adjustable gauges that helped finesse a sight-setting and return to a 'recorded' setting ... or ... do some models remain attached to a sight to add micro-adjustment for elevation?
  
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Cat Man
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Re: Target Shooting Sight Micrometers
Reply #10 - Apr 30th, 2020 at 2:41am
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butlersrangers wrote on Apr 29th, 2020 at 11:55pm:
Some wonderful stuff!

I have to ask. Were these simply precision/adjustable gauges that helped finesse a sight-setting and return to a 'recorded' setting ... or ... do some models remain attached to a sight to add micro-adjustment for elevation?


The micrometer is placed on the sight and used as a precision gauge to make small elevation changes between shots. After making the sight change the binding screw on the elevation slide is tightened and the micrometer is removed and set aside.

The earlier square imported version has no click adjustments but has a vernier scale on the side. The later O'Hare features click adjustment detents which is the "easiest" to use and became "the standard" for riflemen shooting the M1903 on the range.

The micrometers were easily lost on the firing line.  Smiley The standard remedy was to tie a spare GI boot lace to the knob on the micrometer and secure the other end of the cord or lace through a button hole on shirt or jacket. Sometimes seen in vintage range photos if you look close.
  
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Cat Man
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Re: Target Shooting Sight Micrometers
Reply #11 - Apr 30th, 2020 at 2:53am
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Culpeper wrote on Apr 29th, 2020 at 6:05am:
I bought mine from Ray-Vin too.  Those were to only two places I could find pics of the micrometer.

I think he has been retired for five or so years.

Now to get one of the fancy smokers just in case I get a rifle that I need to blacken the sights.



Looks like some guy blacked those front sights for you guys last time. Maybe we need a small arms firing school just for the Krag shooters before the next  Roosevelt match?

Paul could organize that.
  
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Culpeper
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Re: Target Shooting Sight Micrometers
Reply #12 - Apr 30th, 2020 at 8:12pm
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There ya go confusin' everyone with facts!   Fer Shame.  naughty naughty.

It was the other guy!  Really!  HE needed to blacken my rifle.  Not I needed to blacken my rifle.  Well , I just had to let him do it for me since I was an innocent and pure and modest first time CP shooter.  And... And..

Anyone buying this?   > crickets chirping <  Hello?  Anybody there?

Roll Eyes  Cheesy
  

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butlersrangers
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Re: Target Shooting Sight Micrometers
Reply #13 - Apr 30th, 2020 at 8:17pm
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Comments by Dr. Hudson (1903) regarding sight verniers/micrometers:
  
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butlersrangers
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Re: Target Shooting Sight Micrometers
Reply #14 - Apr 30th, 2020 at 9:07pm
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Townsend Whelen views, circa 1909:
  
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