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Thread: 410 single smoothbore with HBWC

  1. #1
    Boolit Master
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    410 single smoothbore with HBWC

    picked up a cute little basque made 3.5 pound single barrel folder over the summer, some brass 2 1/2" shells, and a .395 RB mold and felt wads, but was not happy. can't find a HBWC or paradox mold, so bought some 195 gr HBWC from this source:
    https://www.mattsbullets.com/index.p...roducts_id=282
    the bullets mic 4.409, and drop thru the bore freely. adding scotch tape to .413 makes them stop when dropped in but can be pushed thru with a 3/8 dowel. so the choke on this 26" gun is modified.

    pistol primers and some moderate rate hercules pistol/shotgun powder i suppose. perhaps 10 grains of unique to start over a chrono. can't be slow like blue dot or 4227/2400, as no crimp, i am thinking.

    any source for a HBWC or paradox mold in 410?

    what say you?

  2. #2
    Boolit Grand Master Outpost75's Avatar
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    One of these from Tom at Accurate should work:

    Click image for larger version. 

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    If you order you can tweak diameters.
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  3. #3
    Boolit Master
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    From experiments I did a decade or so ago, a hollow base WC does not stabilize without rifling. In a smooth bore they tumble at less than 25 yards. Look at the shape and balance point of Lyman “pellet” shaped slug vs a hbwc, different animal. Try what you have before investing in a mold. Ymmv, but probably not by much.
    “You don’t practice until you get it right. You practice until you can’t get it wrong.” Jason Elam, All-Pro kicker, Denver Broncos

  4. #4
    Boolit Master
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    You said smooth bore, correct?
    “You don’t practice until you get it right. You practice until you can’t get it wrong.” Jason Elam, All-Pro kicker, Denver Broncos

  5. #5
    Boolit Master
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    this is a shotgun, so smoothbore. the HBWC is quite front-heavy, so i had thought it would be stable enuf to go into 3" at 25 yards. i understand that a SWC or DEWC will tumble reliably.

  6. #6

  7. #7
    Boolit Master gpidaho's Avatar
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    justashooter; Svarog makes a nice Lyman style sabot mould for the 410 available at ebay. I have one and like it. Mine mics .405 on the front band after powder coating. Gp

  8. #8
    Boolit Master
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    Quote Originally Posted by gpidaho View Post
    justashooter; Svarog makes a nice Lyman style sabot mould for the 410 available at ebay. I have one and like it. Mine mics .405 on the front band after powder coating. Gp
    thx, found it

  9. #9
    Boolit Master
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    While they were not cast bullets, I tried some 158gr jacketed .357 bullets in my .410, and they shot very well. They were loaded into a plastic wad, and just slid through the full choke on my barrel. IIRC they did about a 6 inch group at 50yds.

  10. #10
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    Markopolo's Avatar
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    i spent a lot of time messing with different combinations of moulds, wads and so forth. never did get any accuracy to speak of... but I did find a cool triball, 2 ball, and single ball loads that really rocked my break open shotguns over A2400.. very fun to shot and hold close together at 35 yards.. about 4-5 in grouping.
    Any technology not understood, can seem like Magic!!!

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  11. #11
    Boolit Master gpidaho's Avatar
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    Quote Originally Posted by justashooter View Post
    Short Lane shotgun adapters .com

  12. #12
    Boolit Master marlinman93's Avatar
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    I'd expect slugs to pattern like a shotgun. I wouldn't waste much money trying to make a smoothbore into a slug gun.

  13. #13
    Boolit Grand Master Outpost75's Avatar
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    Here are some representative 25-yard targets firing round balls vs. black powder .44-40 cowboy loads in a bead-sighted, .425" smoothbore .410 barrel with choke cut off.

    Click image for larger version. 

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check