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Thread: Powder Drum Removal

  1. #1
    Boolit Buddy
    Join Date
    Nov 2007
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    Western Ky
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    Powder Drum Removal

    Is the powder drum/clean out screw / nipple removable on CVA cap lock rifles? If it is are they standard threads or left handed. Need to remove one and thought I would ask before messing something up.

  2. #2
    Boolit Master
    Join Date
    Aug 2005
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    Near Mazomanie, Wi.
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    1,133
    The threads are standard right hand. Might I ask why you NEED to remove the drum?
    NRA Life
    NMLRA Life
    F&AM

  3. #3
    Boolit Buddy
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    Nov 2007
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    Western Ky
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    Relining the barrel

  4. #4
    Boolit Grand Master

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    Southern Illinois
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    It's not really made to be removed so if you remove it, it may get buggerd up.
    Aim small, miss small!

  5. #5
    Boolit Buddy
    Join Date
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    Western Ky
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    I think I got all my questions answered from a post in 2014. The photo in post number 16 is good info. Looks like I may not need to remove at all.
    http://castboolits.gunloads.com/show...VA-rifle/page2

  6. #6
    Boolit Grand Master

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    Bloomfield, Nebraska
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    You can NOT remove the drum on a CVA! They are installed and THEN bored for the powder channel. Unless you have the right tools you will not get another drum to fit just by turning it in. They are a PITA to work on. That is why the drum has NO wrench flats.

  7. #7
    Boolit Bub
    Join Date
    Jun 2018
    Location
    New Zealand
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    50
    Removed my one out of a CVA Mountain rifle recently. Just put it in a vice and unscrewed with a pipe wrench (RH). The thread for the nipple was buggered. It was the drum with the screw that goes across the barrel inside and just screws into the off side of the rifling. Replace with the newer type from TOW and no issues, some filing of the drum to get it to line up with the hammer but pretty simple really.

  8. #8
    Boolit Buddy
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    Quote Originally Posted by Tasbay View Post
    Removed my one out of a CVA Mountain rifle recently. Just put it in a vice and unscrewed with a pipe wrench (RH). The thread for the nipple was buggered. It was the drum with the screw that goes across the barrel inside and just screws into the off side of the rifling. Replace with the newer type from TOW and no issues, some filing of the drum to get it to line up with the hammer but pretty simple really.
    So TOW does sell a replacement? Do you remember which you you got?

  9. #9
    Boolit Bub
    Join Date
    Jun 2018
    Location
    New Zealand
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    TOW Drum-CVA $6.99 . 12.5mm, 10-1.25mm, threaded 6-1mm nipple. Just checked they have them in stock. Its a short thread and screws into one side of the barrel like most do not righ across like the old originals. Mine has worked fine with loads up to 140gr powder charge (58 cal)

  10. #10
    Boolit Buddy
    Join Date
    Nov 2007
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    Thank You very much. Hope I don't need it though.

  11. #11
    Boolit Grand Master

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    I removed mine years back and converted it into a flint lock.
    Aim small, miss small!

  12. #12
    Boolit Master
    Join Date
    May 2017
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    1,547
    Quote Originally Posted by KCSO View Post
    You can NOT remove the drum on a CVA! They are installed and THEN bored for the powder channel. Unless you have the right tools you will not get another drum to fit just by turning it in. They are a PITA to work on. That is why the drum has NO wrench flats.
    They come out easy!! I have done several - use a diesel spanner - its like a ring spanner with a slot in the end so they can slip over the injector pipe - leave the nipple in the drum and just fit the spanner over to turn it out - they come out clean and easy - if you gonna replace it make a small index mark on drum and barrel so the powder channel lines up right ---this is a simple easy deal with the appropriate tool !!! ...................................they are a metric thread

  13. #13
    Boolit Buddy
    Join Date
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    Western Ky
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    We put a pipe wrench to it. It broke flush with the barrel. After several drill then EZ-out the metal got thin enough to tap. Ran a correct size metric tap in and cleaned right up good as new.

  14. #14
    Boolit Master
    Join Date
    Jul 2013
    Location
    Florida
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    703
    I was thinking that you could use a socket that slides over the drum. Just drill a hole in it's side for a screw that will run into the nipple hole. Though I might need to pull the breach plug on a CVA mountain rifle I picked up which had a load still in it and was planning to drill a socket for a removal tool. Got the ball out with a puller instead.

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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