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    http://ironsightinc.com/

    http://ironsightinc.com/
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    American Rifleman did an article on loading this...

    American Rifleman did an article on loading this round in 2015. https://www.americanrifleman.org/articles/2015/5/15/handloading-the-65x54-mm-mannlicher-schoenauer/ Hope this helps.
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    Bill, In no order: Unwaxed cardboard; ...

    Bill,
    In no order:



    Unwaxed cardboard;
    Fabric. Either cotton or cotton/polyester;
    Thin foam sheeting.
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    Experience from other shooting sports says that...

    Experience from other shooting sports says that Corplast is the last material you want for competitive shooting sports. While it's light and durable, the "waterproof" part means many water-based...
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    While there are dedicated F-Class matches, most...

    While there are dedicated F-Class matches, most events are fired alongside NRA Prone Matches. Courses of fire are typically identical to those fired by prone shooters.




    A list of upcoming...
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    Your questions can be answered (in writing) by...

    Your questions can be answered (in writing) by looking at the NRA Highpower rulebook at http://rulebooks.nra.org/documents/pdf/compete/RuleBooks/HPR/hpr-book.pdf .
    NOTE: While there is a separate...
  7. Thread: Chamburrrrrr!

    by Asa Yam
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    Borescope might work better. Much smaller, so...

    Borescope might work better. Much smaller, so you can get closer to the burr.
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    Al, Back in the 1950s, the US Navy had piles...

    Al,

    Back in the 1950s, the US Navy had piles of surplus material, and a serious lack of funds for things like rebar. For at least one project in San Diego, surplus 1903 rifles (barreled actions)...
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    Or, a thin metal liner was wrapped in leather...

    Or, a thin metal liner was wrapped in leather strips. Apparently, rate of fire was a real problem with guns built in this manner....
    https://en.wikipedia.org/wiki/Leather_cannon

    Actually, the...
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    Good advice - IIRC, the US Army has taken this...

    Good advice - IIRC, the US Army has taken this route due to bolt fractures after 3,000 to 10,000 rounds. Why? Cyclic motion + corrosion pits = fatigue tester. See...
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    Found this while looking up construction of the...

    Found this while looking up construction of the barrel: http://www.designfax.net/news/archive/10-21-2008/stories/feature-2.asp . Talks some about the manufacturing, and the proof firing (from...
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    Wonderful stuff, MEK. So wonderful, my employer...

    Wonderful stuff, MEK. So wonderful, my employer (aerospace manufacturer) refuses to allow mechanics to use it. Apparently, long term effects of breathing MEK fumes include nerve damage. Wear...
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    Mort, The feed system not only loads live...

    Mort,

    The feed system not only loads live rounds, it also collects spent cases. At 3000 rounds/minute, it's a tall order.


    Zippy,

    1,550 rounds, according to...
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    52C has a magazine. Best guess is a 52B or...

    52C has a magazine.

    Best guess is a 52B or early C.stock.
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    72,224

    Mike (and all). "OBA" stands for "Oxygen...

    Mike (and all).

    "OBA" stands for "Oxygen Breathing Apparatus". In design and function, it is a "rebreather" system, where CO2 is chemically converted to O2. THE OBA unit is (or was) a US Navy...
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    Why do you think the often quoted statistic for...

    Why do you think the often quoted statistic for snipers is 1 kill per 1.7 shots? :confused: Again, this takes nothing away from the shooter, but it does stress just how difficult connecting with...
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    That line is probably where the 6mm neck ended. ...

    That line is probably where the 6mm neck ended. Is it a thicker section of brass, or thinner? If thicker, use of a neck reamer will probably remove it. Agree that annealing before necking up is...
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    Re: Blackout ammo. Multiple manufacturers load...

    Re: Blackout ammo. Multiple manufacturers load ammo for this caliber. Remington's "low end" 120 grainer actually performs fairly well, though I suggest you stay (far, far, far) away from most 147...
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    Josh, Most 80 grain .224" bullets are not...

    Josh,

    Most 80 grain .224" bullets are not meant to be magazine loaded, but as single shot rounds only. Have seen 80 loaded for standard magazine length (2.260"), and they're interesting - the...
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    All, For a history on SBRs, machine guns, and...

    All,

    For a history on SBRs, machine guns, and suppressors, see the article at https://en.wikipedia.org/wiki/National_Firearms_Act .

    No, NFA 34 was NOT an attempt to keep civil servants in...
  21. 1. Peaked roofs trap sound. Consider using a...

    1. Peaked roofs trap sound. Consider using a roof with a single slope, with the high side facing the range.

    2. Put a sound absorber under the ceiling to muffle the boom of firearms.

    3. Put...
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    Since nobody has asked, why is .30 caliber...

    Since nobody has asked, why is .30 caliber scoring being used? US F-Class uses the "Bullet" Diameter" rule, where the diameter of the bullet (and not a .30 cal plug) determines score. This is...
  23. Thread: Solvent Tests

    by Asa Yam
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    12,301

    Pete, You asked for solvents, but the best...

    Pete,

    You asked for solvents, but the best method I've seen for cleaning metal fouling from barrels is electrochemical. While Outers discontinued their Foul-Out units (units are still for sale),...
  24. Comparing the readings against other chronos is a...

    Comparing the readings against other chronos is a sound method of checking the calibration of the electronics of the various units. However, having a good reference firearm/ammo system is still...
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    Standard twist rate for a 40XC is 1:12". Such...

    Standard twist rate for a 40XC is 1:12". Such barrels will shoot 190 Sierras reasonably well, friends used to use modified Remington Varmint Synthetics (same twist in factory barrels) with 'em to...
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