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Thread: Neil Jones 22RF head space gauge

  1. #1
    Boolit Grand Master
    Join Date
    Feb 2006
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    Kaneohe, HI
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    Neil Jones 22RF head space gauge

    In another post, I had a "What is it???" on this.
    It's a Neil Jones 22RF head space gauge.
    Took it to the range today to play and see if it really makes a difference.
    Rifle I used was a Polish WZ48 .22RF training rifle.
    Probably not the ideal rifle to try this out on, but it's what I've been practising with.
    Rifle shoot good dispite the bad sights.
    Gauging a half box of Blazers, I found most were about the same. #1 to #2
    A few were way off. #4 to #5
    But after shooting, it didn't make any difference.
    I'm thinking the head space of the rifle is so large, it just didn't matter.
    I don't have any high dollar tight head space/chamber rifles.
    Mostly military trainers, old pumps, bolts and semis.
    I'll try and sort more and try a different rifle.

  2. #2
    Boolit Master
    Join Date
    Jan 2010
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    South Louisiana
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    THey make a difference in tight chambered match rifles like Anschutz. Sometimes a .001 difference in headspace can change everything in those guns. THing is though that most high dollar match ammo like Eley the HS is all pretty consistent but will eliminate the random flier for a big match. I have sorted Wolf Match and Match Extra and will get .002 difference and the tighter HS seems to shoot better at 100yds for me.
    NRA High Master XTC
    DR# 2125

  3. #3
    Boolit Grand Master

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    I made one years ago when I was building target rifles on the 10-22 and setting the headspace. I found that on a windless day at 100 yards the difference was on the order of 1/2" with sorted vs non sorted. This was wigh rifles capable of under 1" groups at that range. Trial by 10 shot groups and barrels cleaned and prepped before each ammo change. THis might make a difference to a truly dedicated target shooter but in a hunting or plinking gun????

  4. #4
    Boolit Grand Master
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    Feb 2006
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    One thing I forgot.
    While using it, I noticed if I turn the case, I sometimes get a different reading.
    Being Blazer ammo, I wasn't surprised.
    I'm sure high price ammo would not have this problem.

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