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Thread: Has paper-patching ever been successfully used with rifled cannons?

  1. #1
    Boolit Mold
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    Can a paper-patch provide obturation without a soft projectile, i.e artillery shells?

    I was wondering whether this would actually work on larger calibers, which typically don't use ductile metals.

    The only example I'm aware of would be the Schenkl projectile, which was made of cast iron, but that was a considerably thicker papier-mache sabot, rather than a thin layer to engage the rifling.

    Click image for larger version. 

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    Would a simple patch not work with the cast iron shell?
    I guess it wouldn't expand and provide additional obturation, but shouldn't patching to groove diameter suffice for that?


    In other words, is a relatively soft metal essential to making a functioning paper-patched projectile?
    Last edited by Bvert; 06-02-2020 at 11:36 AM.

  2. #2
    Boolit Master Dan Cash's Avatar
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    I don't know the answer to your question but do you know how well the Schenki projectile worked. That is an interesting set up.
    To paraphrase Ronald Reagan, the trouble with many shooting experts is not that they're ignorant; its just that they know so much that isn't so.

  3. #3
    Boolit Buddy
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    Quote Originally Posted by Dan Cash View Post
    I don't know the answer to your question but do you know how well the Schenki projectile worked. That is an interesting set up.

    Federal Schenkl 3.67-inch

    U. S. NAVAL SCHOOL, EXPLOSIVE ORDNANCE DISPOSAL

  4. #4
    Boolit Master Dan Cash's Avatar
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    Leave it to you, One Eye. You always have a handle on this stuff. Perhaps we should start a fact of the day quiz.
    To paraphrase Ronald Reagan, the trouble with many shooting experts is not that they're ignorant; its just that they know so much that isn't so.

  5. #5
    Boolit Buddy
    one-eyed fat man's Avatar
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    It's handy to have some minor Civil War battlefields close at hand. A couple of them with pretty good musuems. But having a guy who builds museum grade, live fire cannon in Ashland who is an authority on how they were crewed and shot is really handy.

    It is with some sadness to note that Marshall Steen died last February.
    Last edited by one-eyed fat man; 06-03-2020 at 06:26 PM. Reason: update

  6. #6
    Boolit Master



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    The old time Schutzen riflemen awore by paper patching. Their accuracy is and was astonishing.
    Gun control is not about guns.

  7. #7
    Boolit Grand Master

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    That appears to be a reversal of the original Minnie design that had a plug in the tapered hollow base. It should work well as the Paper machete will expand on the tapered base sealing and gripping the rifling. And set up like in the picture was an early rebated boat tail

  8. #8
    Boolit Mold
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    I have a good friend who made his own civil war cannon, it's to scale about 2.5 in. bore that he rifled himself, he made his own molds, and swage his bullets, about 2 years ago he started to paper patch them , his accurate to over 900 yds 55 gal drum.

  9. #9
    Boolit Master

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    I have wondered if this approach might work for a boattail lead bullet. Something to prevent the boattail from obduration during rapid acceleration.

  10. #10
    Boolit Master Lead pot's Avatar
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    It can be done even with a swaged rebated cup based 1/20 alloy. Nothing exotic base protection needed. That is a bullet shot with my .40-70 Shiloh.

    Attachment 263585Attachment 263586
    Last edited by Lead pot; 06-14-2020 at 05:22 PM.

  11. #11
    Boolit Master Ozark mike's Avatar
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    Yes the paper is pushed up the cone and provides a tight seal. The lower the angle the more it will push against the rifling. that is a neat design
    Those who would trade freedom for safety deserves neither and will lose both

  12. #12
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    wasnt a wood sabot used during the war of the rebellion? seems i read about that in the past. the civil war?

  13. #13
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    Chemoman;

    during the War of Northern Agression (1861 to 1865) nothing Civil about it, both sides used a wooden base on their cannon canister projectiles:

    Canister shot consists of a closed metal cylinder typically loosely filled with round lead or iron balls packed with sawdust to add more solidity and cohesion to the mass and to prevent the balls from crowding each other when the round was fired. The canister itself was usually made of tin, often dipped in a lacquer of beeswax diluted with turpentine to prevent corrosion of the metal. Iron was substituted for tin for larger-calibre guns. The ends of the canister were closed with wooden or metal disks.

    https://en.wikipedia.org/wiki/Canister_shot
    Mustang

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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