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Wildcat 12GA From Hell.--

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412 comments

  • hubel458
    Info to help loading BPI sabots in plastic,ok to use plastic
    overwad over powder, but should use cardboard card and
    nitro wads above that below the BPI sabot. Sabot doesn't
    tear up and accuracy much better. Personally I use
    cards over powder and nitro wads, And with used cases
    roll crimping onto the thin edge of sabot is uneven, so with
    my used cases I set the sabot and slug to right height and
    just redo the 6 point star crimp real hard, and the middle of
    all the crimp sectors set right on the flat nose of the slug
    in the sabot. I also do the same with RG's 715gr hollowpoint
    with the crimp sectors right on the hollowpoint in used cases.
    Roll crimping holds RG's slug in ok but its taper of the ogive and
    smoothness it doesn't open crimp all the way around when
    fired. The star crimp set slug at same height so you can get
    the same amount of powder. With RMC brass these are not
    problems but with brass to get good feeding from mag rounding
    front edge of mouth helps. Sectioned picture of RMC on right
    next to our long original case to show how well it is built
    thick and strong. One of cases has 20 firings, still good..Ed

    rmcs.jpg
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  • hubel458
    What others are doing hopping up loads and experimenting.
    Brett in MN uses a Mossy 835 12ga smoothbore turkey gun, but
    it is backbored 10ga size all the way out to end and has 10ga size
    choke, and he uses 12ga AQ 441gr slug with locked on basewad, from
    BPI. Using top rib bead sight only he can hit a pail 5 times in a row at
    70 yds.Amazing accuracy for overbored barrel. He uses BPI X12X seal
    plastic wad, two 1/4" white felt wads, thin card then the AQ slug,
    with 65gr of Longshot getting 2200 fps. 3.5" new cases with
    roll crimp.......I asked him check it with a scope on it sometime.

    NFG from Greybeard and Shotgunworld with pump Mossy and 18.5"
    with slug barrel. He gets a 525gr Lyman over 1800 fps with
    80gr of 4759/4227 powder. Hard alloy mix Lyman and shot one through
    17" of pine. Shown in the pic below it mushroomed to .800" and only
    lost 8gr weight. It is a wasp waisted slug that is shot from a 12ga
    regular WW12 shotcup. The skirt of the slug collapsed into the underside
    of the nose. Many guys say that these are as accurate as most
    other stuff used. He used 3" plastic, PGS wad over powder and
    WW12 wadcup with slug it. He cuts wadcup petals back to length
    of the Lyman.In pic on left you see the Lymans with hollowbase up
    and the shape of it when starting out.

    Ok I am going to get Lymans to test and Longshot to test.
    Got to see if the Longshot will get further up in velocity
    than Blue Dot. Ed

    IMG_0439.jpg
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  • hubel458
    Here is a Savage 210 with bottom of action opened up
    toward the back, to take cases with 3.5" overall length.
    Slug Warrior on Shotgun World did it. Is similiar job the
    Brett in MN did, but he made his opening 3.7". I measured
    mine and they can be opened to 3.95". They also milled
    the rim guides back for controlling case feeding on longer
    cases. Ed

    s5000699ow4.jpg
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  • hubel458
    Here is information and reason for keeping and milling
    the rim guides back for controlling case feeding on longer
    cases.Rim guides are angled in from the sides of the opening
    toward back. As the bolt pushes top case in the mag forward the
    back of case and rim comes to where the tapers widen out so
    the case then slides up in front of the bolt.I'm fixing up my
    2nd Savage I have set up for my second 700H 3.25" belted case.
    Just to see how it will work and along with other guys
    doing it, get the info out to people.
    This work on the stock/action can be done in a vertical
    mill or good drill press. To use 3.5" plastic the opening on
    the action and magazine needs 3.25", for 2.875"" brass long loaded
    3.5", if 3.5" brass about 3.7", if 3.5" brass long loaded, 3.95".
    By long loaded I mean a slug like the Dixie 600gr that protrudes
    up to .4".The 730 gr flat wide nose slug protrudes 1/8".
    You also have to widen and smooth the ramp going into the
    front bridge so case lifts smoothly on the way into chamber.Ed
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  • hubel458
    We get asked about putting brakes on the NEF Ultra.
    There is the concept called the internal brake that works
    nearly as good as expansion brake, with less back noise.
    Rob on AR did a couple with bunch of holes in the barrel
    in the end with the last 1.5" bored out .025" where holes
    go. Also many want more velocity in NEf and I added on
    a barrel section to mine. Combining Ideas we add smooth
    9" section of bore extension, that is same as groove diameter
    and 1.5" end of that for internal brake. Eight 1/8" holes
    top and same 45 degees to each side.And we have over
    a 100 fps in velocity gain. And with card or wad behind load
    it will seal pressure going from rifled section to smooth.
    And these types of holes won't bother wads or sabots.
    My extension is a foot longer and gets 150 fps extra.
    No need for brake in mine as the gun is 17 lbs with extra bbl.
    Here is Rob's two he fixed up, and is shooting.He has
    them reamed out longer for long 3.85" case, weight added.Ed

    DSC_0231.JPG
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  • hubel458
    Here is a picture of porting holes in a 10ga NEF
    heavy long smooth barrel. Bbl 30" and 1.080" muzzle
    diameter behind the screw in choke area. This come
    with slightly extended screw in choke and is first
    10ga with long barrel as heavy as my NEF 12ga FH
    short barrel was.. OR the short NEF 10 gauges
    with heavy barrel..It came with full and mod chokes.
    The other 10ga I tested earlier, only .960" at muzzle.
    I cut choke off and put it back in leaving the barrel
    an open bore for slugs and leaving an area 1.2" long
    for an internal brake to drill all the holes in like
    Rob did with NEFs in his picture. Now the 1.2" long
    area where holes are is bigger than needed for 10 ga
    so a reamer in the making will solve that and solve a
    major big bore project for me and others who asked
    me about using the short NEF 10ga for upgrade, which
    I didn't encourage putting all that work on a short
    barrel gun, with the amounts of powder that will be
    burnt in....are you ready.......THE 8GA FH.......
    I have 8ga FH loads tested in reworked Enfield.....Ed

    10brake.jpg
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  • hubel458
    More info on the heavy barreled gun we plan on
    making 8 gauge from. Nef SB2 103, 30" barrel,
    regular stock. 220 bucks. 100 bucks for shop to
    ream out to 8 ga smoothbore. Needs the 80 dollar
    thumbhole stock. Nice deal for a modern 8ga, using
    heavy duty plastic 3.3" long cases. I fired 6-8000
    ft lb loads in one I made on Enfield, 4 times reloaded
    without resizing cases.
    Here is other project suggested by Boomie
    on the AR big bore forum, the 16GA FH.
    Cases made by me from bmg brass. Took 5 swagings, and
    two turnings on my case spinner lathe.Two Annealings
    Got couple cases made, in picture our 3.5" case and factory
    16ga plastic case slug load. I'm getting test gun working
    now and as for a supply of cases you all will have to
    get with RMC if you want to rechamber a 16ga..Ed

    16ls.jpg
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  • hubel458
    Here is picture of my NEF 12GA FH as it is now,
    A while back I got tired of short barrel and
    added a foot on to it. Used breech end of left over
    Savage and a sleeve. Lined up rifling and it has
    same twist and number of rifling. Hard way to do
    it. No need for rifling, or extra line up work.
    Run many loads and it adds 150 fps with VV110,
    4759, and 4227 powders. Adds about a 100 with
    Blue Dot, and HS 7.

    Next one will be done different and easier.
    Next one will be a smoothbore add on piece of
    groove diameter, 10-12 inches long, make it one
    piece, 1 or 1 1/16" threads,about 1.2" diameter.
    Threaded 1.5" long on original barrel, and into
    add on piece, and will look like a brake and you
    could put in internal brake in the end.Ed

    neflb.jpg
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  • hubel458
    Here is picture Stevens Revelation 350 16ga
    now a 16GA FH. It got a 385 gr to 2000,
    which is good for gun without a real heavy
    barrel. I lengthened chamber for the
    3.5" brass cases pictured that I made from
    BMG brass. Anyone doing this can have cases
    made by RMC. Gun is weighted to 11 lbs.
    Action can handle more if barrel heavier. Ed

    16rev.jpg
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  • hubel458
    Here is picture of the bolt for my big gun, the 700HE.
    It is holding a 700HE long case. The caseholder extraction system
    can headspace a BMG rimless case,no belt, so you could
    put on a 12ga barrel, straighten case more, from .700 to .729"
    and have the rimless 12ga. Could straighten case for a
    .750" bore, even to 10ga(.775") with a little thinning of the
    top one inch of the case. Experimenting is interesting
    to say the least. 700 slugs in pic are 1000gr Woodleigh,
    1000gr PA, 825gr Copperhead Custom(CC), 770gr FP CC,
    1000gr HP CC, 825gr HP CC..Ed

    vulcanb.jpg
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  • hubel458
    There is a new heavy barreled rifled slug gun out,
    the Rossi Model S12 1230S. It will handle our heavier
    loads like the NEF. And it can have chamber lengthened
    for 3.5" plastic and RMC brass 12ga cases. Ed



    H_S121230S.jpg
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  • david5711
    just one quick question... why?
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  • guntech59
    Because,.....he can! And that's good enough for me.
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  • david5711
    yeah i understand that, and his work is neat and all, but is there any specific application that these are intended for? (like the vast majority of widely accepted wildcats they had a niche to fill, e.g. 22-250) is there a niche for these? import car hunting? safe cracking?

    or are they pretty much like a .950 JDJ... more bang for more buck.

    I so far have read through and seen a lot of pretty pictures and a lot of statistics but really haven't gotta a grasp of what these monsters would be good for, that is why i asked why...
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  • hubel458
    First of all for fun.And makes holes easy to see.
    And many shotgun only, restricted by law, guys are
    using hopped up slug loads for deer and hogs.
    Couple guys plan on using long case chambered
    guns in Africa.It gets guys big bores without
    spending 10- 15 grand.

    The BPI sabot is tending toward small diameter.
    With a .512" slug it measures . 727"---So I run slug
    into die and reduced it .020". It is lead, swaged easy.
    Shot a BPI sabot with 385gr Great plains slug in 700HE
    great big gun pictured above. That Great plains slug
    was reduced .020". With 300gr of super fast ball
    powder blend in 3.85" case got over 4500.

    Using slugs with locked on bases and RG's hollowbase
    jacketed slug in 3.5" RMC brass cases in the 1887
    Win levergun. RG's 670 gr HB- 2500 . Brenekke KO
    435gr- 2700, Lightfield 460 gr- 2600 . Even got
    a 385gr in BPI sabot to target straight.Levergun has
    34" smooth barrel and with chamber for 3.5" long
    cases it is run as singleshot. Barrel is a tight smoothbore
    going from .726" to .722". Took out lifter and other
    stuff and put in a bottom style extractor I built that
    is operated by the lever at bottom of opening
    stroke. Then take cases out with fingers, thus able to
    handle long cases in a short action.Makes a real old timey,
    neat looking, single shot blaster.Ed
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  • david5711
    Thanks for the clarification, if making a lower cost safari round is what your after it seems like you have accomplished your goal.
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  • hubel458
    That's the deal to get big power economically.
    You can get a Sav 210, put my 700H in it,like I did
    and with cost of heavy barrel, stockwork, etc
    and be shooting with reloading stuff and cases
    included for 1500 bucks.You can lengthen chamber on
    a NEF Ultra slug gun and have a 12GA FH for
    800 bucks- cases, reloading stuff, etc ready to
    go hunting or busting big pails of water.The thrill
    of 12,000 ft lb load in the SAvage is like driving
    a dragcar for a 7 second 1/4 mile.Ed
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  • hubel458
    Before I posted about testing a NEF in 10ga with
    a medium heavy barrel. The newer one is better.
    It is the one I showed the ported barrel previously.
    I did some 10ga FH testing in that newer, real
    heavy barreled, NEF 10ga, that is going to soon be an
    8GA FH, after reaming out. The internal brake set up
    on the end as shown in picture above works great.
    I stopped all of the muzzle rise and cut recoil
    Gun now is 14 lbs and has thumbhole stock.
    Top load with 3.5" plastic case, 765gr slug,
    135gr of 4227, 2200 fps, 8200 ft lbs.Ed
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  • hubel458
    28GA FH new slug.. The Lyman cast 20ga slug made to
    fit in a 20ga shotcup for 20 ga slug hunters, works perfect
    in the 28GA FH brass case. It is a hollowbases hourglass
    shaped 362 gr slug. No wadcups or wads needed, loaded
    right on powder. It is the slug you buy the molds to cast
    your own or you can buy them from guys who cast for
    sale. I use slow rifle powders in case so no air space,
    they fill to the slugs. I got 2900 with moderate case
    expansion and it hits target straight on, from a smooth
    28ga heavy barrel on 695 Mossberg bolt action.

    Other new info on primers. Some of the guns can't have the
    firing pins or hammers beefed up easy like my Enfields
    With some magnum primers with hard cups you get delayed
    ignition if hammer doesn't have perfect hit and high strength.
    One test with a small diameter case/bore that any primer will
    ignite slow powders fine with good firing pin spring would
    show delayed ignition with shotgun battery cup style 209
    CCI Mag and 209 Federal Mag primers, and when I tested them
    in cases with just the primers, they only put in a small dent
    when they fired, but WIN 209, REM 209, RWS 209(used in
    Brenekkes, Lightfields, Hastings), dented in much more when
    firing just the primer. And with the smaller bore you had fire out
    the end of the barrel, so you could compare primer strength
    visually. The REM 209 was as good or better than CCI and FED
    209 Mag Primers. The WIN and RWS was close behind. We put
    the REM in same case/gun where that we had delayed ignition
    and it fired instantly, no delay. The two mag primer brands have
    the primer insert in cup rounded a lot and little harder metal,
    and the other 3 metal cup insert is almost flat and slightly
    softer. It is easier to get a better more solid strike and dent.
    I always figured mag primers were best in our hopped
    up shotgun loads but not anymore. It took a while but I finally got
    everything around for proper test. Hopped up loads(regular also)
    we have talked about, use REM 209, where the firing pins
    and hammers can't be strengthened. Even loads with Longshot,
    Blue Dot, Steel, HS6-7, etc.
    Hope this helps.....ED
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  • hubel458
    Here is picture my NEF, soon to be, 8ga gun.
    It weighs 15 lbs. The hollow butt and hollows
    in the forearm are weighted. It has a neat recoil
    barrel ring I added so forearm stays put.
    It has internal brake on barrel that I picture
    earlier in thread with the porting holes.
    Second picture is a Lyman 520 gr slug on the right
    that we are testing . They go in regular 12ga shotcups,
    and many folks have good accuracy with them, even
    in smooth bores. They are hollowbase nose-heavy
    design. These are the ones you cast your own.
    And there are guys casting some for sale.
    You see two in wadcups on the right.
    On the left is my prototype of the Lyman
    style, of 900gr for our 8GA FH. Going to get a
    mold made. The base of it will fit the 8ga shotcup
    used in the kiln gun loads, and the front will be our
    smoothbore 8ga size, .832-835". I designed this
    as the flat ended kiln slug without a hollow
    base and heavy in the front, wasn't designed
    to give 100yd accuracy in a smoothbore. Ed

    8nef.jpg

    lyman8.jpg
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  • hubel458
    The picture is some aluminum cored jacketed slugs

    RG made, weighing 385 gr. Full .730" diameter, hollowpoint,

    and one I filled nose with glue gun. Fairly streamlined. 3600 in

    the Savage with our long case..Slug is nice and long,

    1.22" HP and 1.4" with plastic I put in the nose.

    In Nef with RMC 3.5" brass case 2700, 3.5" plastic 2500. Ed

    rgal.jpg
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  • hubel458
    RIP on AR forums been testing starter powders loads, with
    shotgun primers,with Blue Dot starter and HBMG main load. And
    I just tested some variety of ones myself.
    Doing some testing with starter powder, 15gr Blue Dot, with
    slower powders that fill the cases with minimum wads.
    tested in 3.5" RMC case in NEF with shotgun primer,
    with 36" added to barrel.Remember I have extra foot of bbl.

    These 4 top loads expanded case, where I check it, just above
    thick base section to .811" from .807" resized.

    1000gr jacketed, 230gr HBMG, 1800 fps, 7200 ft lbs,
    with 1/8" card and 1/4" felt wad.

    715gr jkt, 270gr HBMG, 2200, 7600 ft lbs, 1/8" card.

    600gr Dixie, 250 gr Retumbo, 2400, 7600 ft lbs, 1/8" card.

    385gr jkt AL core, 250 gr RL25,2900, 7200 ft lbs.
    This is faster than lighter loads in NEF, using 4227 powder.

    Now the starter powder loads, which a few guys like, increase
    powder speeds so that HBMG acts like RL25. In first example,
    with 1000 gr in RMC case you couldn't use 230gr of RL25
    as that would expand RMC brass too much and stick the case.
    A few guys have found that slow powder, with starter
    powder is easiest for 1000gr and heavier loads.

    On another note, I've heard around the grapevine that if
    enough of us ask for NEF to make available a 12ga Ultra with
    a 28" rifled bull barrel that they would do it.Start calling
    folks, maybe do some good. Just tell them these new sabot
    and fullbore slug loads need more barrel to get the velocity
    out of them. 1-866-776-9292. Ed
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  • hubel458
    Here is picture of 28GA FH brass case with the 350gr
    Lyman cast slug. It is the slug you cast to use
    originally in 20ga shot cups, for slug hunting.
    It is nose heavy and will work in smooth bores.
    Brass 3.25" cases from Rocky Mtn Cartridge. It
    will work in NEF/H&R 28ga modern break action guns
    that cost 150 bucks, 26" barrel, you lengthen chamber
    for the brass case. Good hunting loads would
    be 2000 fps and the gun with a little weight added
    and good pad would handle it fine. Had a few guys ask
    about 28ga slug shooting, here is away..Ed

    28lyman.jpg
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  • hubel458
    Here is a double projectile load that would make a
    good defense load. Two Brenekkes doubled up in RMC
    case in the NEF. 85 gr of 4227 pushing 2 one
    ounce KO slugs about 1600. Bottom slug has seal.

    Also found a way to adapt extra slugs to 10ga. A
    515 gr Lyman slug for use in 12ga wadcup, in my
    10ga, using thickwall 10ga BPI steel no slit wadcup
    shortened and Lyman bottomed out in it, so it
    is like a discard on impact sabot slug. Like Lightfield
    and Hastings. I shaved the bottom diameter of Lyman
    so it would fit tight. Similar deal for 16ga using BPI 16ga
    no slit heavy shot cup and 20ga Lyman. Now we have it
    so that 2 Lymans can fit 10,12,16,20,28 ga....Ed

    bren2.jpg

    PS- I ask all of you for a favor. Would you please go
    to the thehighroad.us forums, join in and support them.
    The owner has had original Highroad domain stolen from
    him and he is in court to get it back. He is in
    the right and if you folks show up there it will help.
    And if you can stand it until court rules stay away from
    the first highroad and ask your friends to do the same.
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  • Colt Super
    Doug was here !!

    Doug
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  • hubel458
    Here is 12ga prototype cushioned base sabot I put
    together to show how heavy of powder seal
    and heavy cushion base that is needed. That
    eliminates the blowouts and damage that was
    happening to sabots unless I put a card
    under sabot. Just used a Brenekke seal/cushion
    base, epoxied to bottom of sabot. Even fired one
    and it got out the barrel and 437gr slug hit
    target straight. Ed

    hsab.jpg
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  • hubel458
    Some 8ga experimenting and info. The 8ga chambers
    I have are set up to fire the regular 8ga
    size cases, and also REM kiln cases with bases
    turned smaller, where the extra short basecup
    is formed over the inside cup.Just reduce to the
    diameter that it chambers ok and regular case
    doesn't expand very much fired in same chamber.
    This idea came from UK 8ga hunters that found
    it was easier to get kiln cases. Now the other
    case in 8ga available is the WIN kiln case and
    ones I've seen are only single thickness basecup,
    but they have the step formed in them to match
    the kiln case belt size. Now you can't turn them
    down any to fit my chamber, BUT you can swage
    them down .012" in a die with a lttle lube on the
    basecup. Examining them they do expand much more
    than the doubled up REMs.I fired REMs 4-5 times
    with bases expanding .002", the WIN I did
    expanded .005" in one shot. I will use
    heavier built REMs as they are 70cents
    primed and good for 4-5 shots,
    no resizing, with hairy 8,000 ft lb loads.Ed
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  • hubel458
    I glued up 3 of 12ga prototype sabots. At 25yds( the 50yd range
    is in the water and snow) And the three with 437gr .512"
    slugs I did one 2" group with peep sights and bad eyes.
    Running about 2400 fps from RMC case in the NEF 12GA FH
    Shot 3 of my 28ga FH with Lyman 360gr at 2100, from
    the Enfield 28GA FH, and got same size group.Real windy
    when testing . Going cold and ready to snow again.
    Shot a 600 grain Dixie hardened heatreated slug, in Savage
    in our long case at 2900 though two-- 1/4" steel plates with
    2" of wood between them. Made big hole.Ed
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  • grady mitchell
    i would like to buy or have a 8 ga industrial shoulder fired shot gun made just some thing safe to shot the real 8ga industrial round i have the cases ammo and a reloading die for the 8ga industriaal round can any one do it ??
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  • hubel458
    I'm making 8ga from 10ga long heavy barreled NEF.
    It will be a good economical nice gun......
    But not to fire factory kiln loads. They use
    fast shotgun powder and peak pressures are to
    quick and too high. You got to reload with our
    slower powder loads. Cases are good for 4 reloads
    with our loads, and inexpensive.

    Before it got cold again got little more testing done.
    I shot 8ga Lyman 900gr wasp-style slug out of
    the Enfield at 2350. I made it from heat treated
    lead REM kiln gun slugs, and it went through 6 foot
    of hardwood slabs in my backstop. Hit target square,
    behind chrono, which is great from smoothbore.
    It is hollowbase and seems very stable.And real hard.
    I shot 3 shot group, with 12ga 525gr Lyman, in 87
    smoothbore long barrel levergun, At 25 yards they
    all made hole like cloverleaf. Used 3.5" RMC brass, with
    Lyman in a WW12-114 shotcup, going 2100.Now my
    87 smooth barrel is .722" at muzzle, .726" at breech,
    so it gives tight support to shotcup and Lyman slug,
    for fairly accurate load.....Ed
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