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Thread: speer capsule question

  1. #1
    Join Date
    Apr 2020

    speer capsule question

    anyone ever get bored and consider the possibility of using them as a sabot for perhaps say a .311 170 grain bullet in a 357? even a 125 grain bullet?

    the excellerator loads seemed interesting, but since those aren't made anymore and the shot capsules are, just what could one get with full power 357 loading data with 32 mag bullets

  2. #2
    Boolit Master

    rancher1913's Avatar
    Join Date
    May 2015
    plains of colorado
    i load rock salt, sand, large pellets, #9, #12, and just about anything else that I think might be worth trying but putting a 30 cal boolit in it never crossed my mind.
    if you are ever being chased by a taxidermist, don't play dead

  3. #3

    Join Date
    Dec 2005
    Oregon Coast
    The problem would be in getting enough grip on the bullet to impart spin from the rifling. Sabots are normally made from a plastic that is more "grippy" than the slick plastic the Speer capsules are made from. The plastic the capsules is made from is designed to break up on firing.

    The other problem is tight fit. I haven't gone down to the shop to see how tight the fit might be, but it would have to be very tight. Sabot plastic is ductile, while capsule plastic is brittle, so I see several problems with the concept.

    I have put buckshot in the capsules in the past, which I believe was 0 buck. It wasn't spectacular if I remember correctly, so I didn't pursue it further.

    Hope this helps.

    After a shooting spree, they always want to take the guns away from the people who didn't do it. - William S. Burroughs.

  4. #4
    Boolit Master
    NoZombies's Avatar
    Join Date
    May 2009
    N. Florida
    Since bullets for the .38/357 can be had at under 100 grains, I doubt it would gain you much, even if it did work as a sabot and impart rotation to the bullet.
    Nozombies.com Practical Zombie Survival

    Collecting .32 molds. Please let me know if you have one you don't need, cause I might "need" it!

  5. #5
    Boolit Bub Bwana John's Avatar
    Join Date
    Jul 2019
    N. AZ
    I would think that using a 3D printer might be a very easy way to make custom sabots.

  6. #6
    There was an outfit that advertised in Firearms News. They had a bunch of sabot sizes. Buddy bought some to fire 223 bullets in his '06.
    I'm not sure if you could get 30 cal to 357 cal sabots, but try the Google and see what pops up

  7. #7
    Boolit Master
    375RUGER's Avatar
    Join Date
    May 2011
    New Mexico
    I use to drop two .380 boolits into a .44 capsule, worked really well.
    Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats. H.L. Mencken

  8. #8
    Boolit Master
    Skipper's Avatar
    Join Date
    Apr 2008
    Behind the lines in Commiefornia
    The engineers at Speer say that the capsules are designed to fracture and break in the bore...not something you want a sabot to do.
    The strongest reason for the people to keep and bear arms is, as a last resort, to protect themselves against the tyranny of government.
    -- Thomas Jefferson

  9. #9
    Boolit Buddy Cheeto303's Avatar
    Join Date
    Jan 2018
    Woodlawn, Tn
    I used to stuff them full of spent primers. They wreaked havoc on snakes in my chicken coop. Most definitely a close range proposition though.
    "Adults are the children and the children are the adults" Jules my wife.

    All you need for happiness is a good gun, a good horse, and a good wife. Daniel Boone

    Democracy is defended in 3 stages: Ballot Box, Jury Box, Cartridge Box. Ambrose Bierce

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    Black Rifles Matter

    NRA Life Member, SAF Member, GOA Member, TFA Member

  10. #10
    Boolit Master

    Join Date
    May 2015
    Anchorage, AK
    I think you'd have poor results. Looked at building 50 cal sabots to run a 338 cal bullet at a higher velocity for LR work past 1200m in the early 90s. Do a Web search for sabots, last I looked the Remington style 'Accellorators' were still available and they had quite a few available.

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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