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Thread: 12GA FH--Hairy Shotgun/Rifle--

  1. #101
    Gunco Member hubel458's Avatar
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    The three slug loads tested above are real
    light recoiling, easy to shoot. I call
    them my big bore, varmint slugs as they are
    light for the bore size. Here is picture of
    the 3 slugs for comparison. 1st is 770gr in 8ga wadcup,
    second is 515 Lyman in 10ga wadcup, third is the
    12ga 385gr HP with aluminum core. The 8ga wadcup
    loses its petals going out the barrel, but
    hollowbase 770gr slug stays straight.The 515gr Lyman
    in the 10ga thickwall wadcup is also as a unit
    nose heavy and runs straight. The Lyman is held in
    cup with little plastic mender glue, so that it
    acts like a Hammerhead and Lightfield slugs.Ed


  2. #102
    Gunco Member hubel458's Avatar
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    Here is what a 600gr super hardened Dixie slug
    at 29-3000 plus does to two mild steel plates with
    2" wood between them. Fired from our long case
    in the Savage.Two plates are soft mild steel.
    In hole nice and round. Out, in back plate jagged.
    Anyone interested in the 12ga Encore
    with 3.5" chambers, that I tested loads in,
    it is on Gunbroker..Ed


  3. #103
    Gunco Member hubel458's Avatar
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    Shot the NEF 8GA FH. That is the heavy barrel NEF
    that was a 10ga.. I bored it out to 8ga and chambered
    it for the heavy duty 8ga case. 770gr at 2200 out of
    29" barrel. End of barrel has internal brake with 24
    porting holes and with weighted thumbhole stock,
    it handles recoil easy.Will have picture soon.Ed

  4. #104
    Gunco Member hubel458's Avatar
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    Here is my 12GA FH Savage 210 with thumbhole
    stock, I put on in place of first one that cracked.
    Along with weight and heavy barrel handles recoil
    great. It is a Boyd and came inleted for Savage
    112, and I re-did inleting to fit 210 and
    heavy barrel,and got rid of monte carlo
    outline.Ed


  5. #105
    rbthntr64's Avatar
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    Quote Originally Posted by hubel458 View Post
    For 10ga you can use our 1 3/4 oz slug loads in 3.5" plastic cases.
    We get 1800 plus. That is 765 gr slug. We use 110 gr of
    IMR 4227 powder. Gun is weighted.
    4227 is a pistol powder. The pressure spike would be enormous with that much powder out of a shotgun length barrel.
    Freedom is not free. Some will perish to preserve it for the many. Just as our Forefathers did before us, we must take up the battle and not waver. Victory is our only option.

  6. #106
    Gunco Member hubel458's Avatar
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    4227 is just a powder with a certain burn speed like all the rest.
    Its relative speed is about 250, the fastest shotgun powders are
    about 7-800, 4831 rifle powder is about 100, the slowest bmg
    powders about 70. All powder has about same energy per grain.
    We can use so much more of the 4227 as it is slower in a much
    bigger bore than a pistol.And 775gr slug is light for an 8ga.If you used
    1500gr then you'd cut powder back about 2/3 as much.We lab tested
    90gr 4227 in 12ga with 600gr slug and average of peak pressures
    was under 15,000 psi. That is like some magnum factory slug loads,
    of same slug weight,only we get 3-400 fps more. Not because of any
    higher peak pressure, but due to slower burn rate powder the average
    pressure the full length of the barrel is higher, thus more velocity.
    And it takes more of slower powder to keep that barrel pressure
    average higher. But we use this as a gimmic to get more velocity
    without fear of to high peak pressure.I that load was the fastest
    shotgun powder it would spike to over 100,000 psi.

    Here is picture of RIP's two 12GA FH NEFs.
    Both are the 12ga Ultra Slug Guns.
    One has Vias brake, other expansion chamber.
    He calls it his golf ball launcher. Ed



  7. #107
    Gunco Member hubel458's Avatar
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    I found a shotgun primer that will ignite rifle powders,
    like RL15-19, IMR 4064,4198, etc. With regular shotgun
    primers I had to use Blue Dot starter.
    But not with these.....They are the industrial
    shotgun primers used in the 8ga kiln gun cases. I use
    these cases with basecup reduced in my 8 gauges.
    When I set up first 8ga I fired the primers only to test
    firing function(cases came with primer), then I put
    regular 209 primers in to test loads, with 4759 powder.
    Found box of WIN paper case kiln 3oz loads and took one
    apart and noticed it had 94gr of some ball powder.
    I wondered what powder is and how a regular shotgun primer
    could ignite that, based on our need for starter powder
    using regular rifle powders. So I fired that industrial
    primer and flame and sparks came out of 8ga NEF barrel
    2-3 feet. Put a regular primer in same case and flame
    just a few inches. So I took REM kiln case with original
    REM industrial primer and 2-3 feet of flame,and put regular
    primer in and just few inches of flame. If anyone got
    info on th powder used and how to get these primers,
    let us know. I took some out of 8ga and put in 12ga plastic.
    Using these hairy industrial primers today fired 180gr
    of RL-15, in 12GA FH NEF, in 3.5" plastic cases with
    437gr Brenekke KO slug. Got perfect ignition, no starter.
    140gr with 600gr dixie, perfect ignition.
    Also I have the 12ga Encore that we tested loads
    in, on Gunbroker, in shotgun singleshot section.Ed

  8. #108
    Gunco Member hubel458's Avatar
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    I always felt that if some company would make powders like 7383
    available it would be great. 7383 ignites fine with regular
    shotgun primers in 12ga, but it is surplus and only a few of
    us have it.It is a powder that has a lot of the deterrent inside
    the of the material, not all near the outside like 99% of
    all other powders whether spherical, tubular, or flake.
    This allows easier ignition, but yet the deterrent still can
    control the speed. Well the new RE-17 just out for 2 days
    is setup like that. The surface of the RE-17 grains is
    more porous than RE15, so that fact allows better ignition
    even though a slower powder, and along with fact that company
    got most deterent inside it still regulates speed.
    Today I fired with regular REM and WIN primers in
    plastic and RMC cases, a whole bunch of loads of RE-17,
    with no hesitation or squibs or misfires. Loads ranged from
    437 gr slugs to 750gr slugs today. All loads burnt clean
    and I got in RMC case one of RG's 715gr jkt slugs to 2300
    with 160 gr of RE-17. Using plastic you must have a strong
    roll crimp with slug and wads tight.....Whoopee....Ed

  9. #109
    Gunco Member hubel458's Avatar
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    I shot couple loads with regular primer with RE-17
    and 1040 gr slug in 12GA FH NEF, and it does great.
    Tested loads that were cooled outside a while.Perfect ignition.
    I fired loads RE-17 8ga plastic,in my 8GA FH on new NEF long
    heavy barrel that was a 10 ga and RE-17 is great. No hesitation,
    it fires off as good in 8ga as the 4759. Remember
    I couldn't get good ignition in 8g with 4227, but so far
    RE-17 is magic. In 8 ga all it would hold under the 8ga REM
    wadcup with 770 gr slug is 200 gr of RE-!7, with the
    wadcup pressed down, compressed real hard,good crimp,
    and it really bellers.2400 plus.Going by case
    expansion about 20k pressure. Which don't bother
    those one piece compression molded super strong
    8ga REM cases. You must have real tight proper
    roll crimp in plastic cases and good tight
    taper crimp or rolled in crimp in groove
    in the brass cases. In RMC brass I size it so slugs
    have to be shoved in with press.In all of this
    brass and plastic, no airspace use wads when needed.

    And this RE-17 doesn't break up the kernels when powder
    gets to a certain point, like the 7383 does, causing burning
    rate to speed up more than what it was designed for.
    I tested 7383 in my 700HE, and when up to 35-40k it's
    pressure went up fast, much more than linear progression.
    I still like 7383 at shotgun pressures, but I really like
    RE-17.Just great fun to use slower powder, so that
    we don't have to worry about fast, high peak pressures,
    but yet get large volumne, pressure curve for good velocity.

    Ok- for those who want to get into the 12GA FH and get
    the long strong 3.85 inch cases Rob on AR got some made,
    email him to deal to get some- garnickrob@aol.com
    He can also tell you where to get reamer.Ed.

  10. #110
    Gunco Member hubel458's Avatar
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    Here is picture of another fellas work on AR forum,
    of NEF 12GA FH, factory thumbhole stock
    and a brake he built, with wide slots in top and round
    ports on the sides. He is testing heavy slugs.Ed





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