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Thread: 12 GA From Hell

  1. #501
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    Quote Originally Posted by elysianfield View Post
    No doubt a destructive device...I once was in a shop when an old gent was showing off a similar project...mentioned that it was probably illegal, he looked at me like I was nuts. Several months later I was told he was contacted by the government and made to cease and desist....
    One has to read the whole law...

    "(f) Destructive device

    The term “destructive device” means (1) any explosive, incendiary, or poison gas (A) bomb, (B) grenade, (C) rocket having a propellent charge of more than four ounces, (D) missile having an explosive or incendiary charge of more than one-quarter ounce, (E) mine, or (F) similar device; (2) any type of weapon by whatever name known which will, or which may be readily converted to, expel a projectile by the action of an explosive or other propellant, the barrel or barrels of which have a bore of more than one-half inch in diameter, except a shotgun or shotgun shell which the Secretary finds is generally recognized as particularly suitable for sporting purposes; and (3) any combination of parts either designed or intended for use in converting any device into a destructive device as defined in subparagraphs (1) and (2) and from which a destructive device may be readily assembled. The term “destructive device” shall not include any device which is neither designed nor redesigned for use as a weapon; any device, although originally designed for use as a weapon, which is redesigned for use as a signaling, pyrotechnic, line throwing, safety, or similar device; surplus ordnance sold, loaned, or given by the Secretary of the Army pursuant to the provisions of section 4684(2), 4685, or 4686 of title 10 of the United States Code; or any other device which the Secretary finds is not likely to be used as a weapon, or is an antique or is a rifle which the owner intends to use solely for sporting purposes.

    Please see: https://www.law.cornell.edu/uscode/text/26/5845

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  3. #502
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    Bob Snapp, 90, the great Gun Craftsman, of

    Clare, Michigan, passed away Jan 28th....

    He was an esteemed member of the

    American Custom Gunmakers Guild,

    Being its president in 1992..He liked

    working with Martini Cadet singleshot rifles

    .Worked with guys testing armor long time ago.

    Maybe the 1st to do 20mm necked down to 50cal

    We lost a great friend,,,Ed

  4. #503
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    We use cards and wads in both plastic and brass 12 ga

    where needed, No airspace ever, For 4759 powder start at 75gr

    no less for slugs up to 750gr, For RE17 start at 105gr, no less,

    for slugs up to 750 gr, the roll crimper is steel ones

    ballistic products and others have, use only on plastic.

    For brass cases we size them so slug nas real tight fit. Ed

  5. #504
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    .....


    It is possible rig up holders for many types setups.,

    About shellholder supply for big cases,

    RCBS and others make slip in holders for shotgun cases

    that can work or reworked for big rimmed rifle cases...

    Here are various sizes.......

    16ga-- .810" rim,........ 20ga-- .760" rim,....

    24ga-- .725" rim,....... 28ga .680" rim....

    Ch4d and Buffalo Arms also have these larger shellholders...


    We fireform the 416 HSM with 65 gr of medium speed

    surplus powder, with rest of case filled with farina

    and grits mix, with a play dough plug in the neck.

    It is loud, so we shoot it into big container through a barrel size

    size hole, so the sound is muffled, so it doesn't deafen us..


    It is great getting more companies making 416 caliber bullets,

    long target and bore rider bullets. Ed..



    ....

  6. #505
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    HERE is a video, 585 Hubel Express and water jugs - slow motion

    750 gr with 155gr RE17, just a moderate load.....Ed


    YouTube

  7. #506
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    20mm Vulcan is a big case that works ok, without having

    the sides made too thick...They have thinner sides

    than smaller cases guys are getting that have the sides

    made too thick and won't extract easy or work with high pressures.


    Here Barnard P Cheytac bolt that would do for our 416 HSM..Ed......



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