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Thread: Converting Berdan primer pockets to Boxer

  1. #201
    Boolit Grand Master Four Fingers of Death's Avatar
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    I have a Steyer95 and a good stock of Nazi 1938 ammo and clips. I have everything to cast and reload apart from brass. It looks like I'll be going down this track as well. I did see on YouTube, the Ammo Channel from memory, the guy drilled the primer pocket out and then swaged a small piece of copper tubing into the new hole, trimmed it on the grinder then re-swaged it. This method looks easier(ish). I will try it first.
    "I'll help you down the trail and proud to!" Rooster Cogburn.

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  2. #202
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    Quote Originally Posted by Four Fingers of Death View Post
    I have a Steyer95 and a good stock of Nazi 1938 ammo and clips. I have everything to cast and reload apart from brass. It looks like I'll be going down this track as well. I did see on YouTube, the Ammo Channel from memory, the guy drilled the primer pocket out and then swaged a small piece of copper tubing into the new hole, trimmed it on the grinder then re-swaged it. This method looks easier(ish). I will try it first.
    Attachment 199391

    As you can see the case on the right is a converted Steyr 95 nazi case. I did a couple hundred for a friend. No problems.

    Larry Gibson

  3. #203
    Boolit Grand Master Four Fingers of Death's Avatar
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    Quote Originally Posted by Larry Gibson View Post
    Attachment 199391

    As you can see the case on the right is a converted Steyr 95 nazi case. I did a couple hundred for a friend. No problems.

    Larry Gibson
    It looks like I'd better get the Steyer out and shoot a few rounds and then clear away all of the junk in front of the drill press, haha. Thanks.
    "I'll help you down the trail and proud to!" Rooster Cogburn.

    "Slap some bacon on a biscuit and let's go! We're burnin' daylight! " - Will Anderson (John Wayne) "The Cowboys."

    SASS Life Member No 82047

    http://s89.photobucket.com/albums/k228/4fingermick/

    Psycholigist to Sniper; 'What did you feel when you shot the felon Sargeant?'
    Sniper to Psycholigist; 'Recoil Ma'am.'

    From my Irish Ancestors: "You've got to do your own growing, no matter how tall your grandfather was."

  4. #204
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    Any questions about the process don't hesitate to PM. It's actually easier than it looks.

    Larry Gibson

  5. #205
    Boolit Grand Master Four Fingers of Death's Avatar
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    Thanks. I have been reading through the posts and a lot of guys mentioned decapping berdan primers. I saw a couple of methods on Youtube that were very efficient.

    One used a block of wood with a hole drilled all of the way through for the primers to escape. Then rim sized hole was drilled for about 1/4" The cases were placed in this during decapping.

    The second method just used the shellholder.

    Both methods were the same after that. The case was dipped into water filling it, then placed in the block / shellholder and a 1/4" Socket Drive screwdriver thingo was placed in the case neck (reasonable fit) and whacked with a piece of wood, bingo! Primer is out.

    Easiest method I have ever seen.
    "I'll help you down the trail and proud to!" Rooster Cogburn.

    "Slap some bacon on a biscuit and let's go! We're burnin' daylight! " - Will Anderson (John Wayne) "The Cowboys."

    SASS Life Member No 82047

    http://s89.photobucket.com/albums/k228/4fingermick/

    Psycholigist to Sniper; 'What did you feel when you shot the felon Sargeant?'
    Sniper to Psycholigist; 'Recoil Ma'am.'

    From my Irish Ancestors: "You've got to do your own growing, no matter how tall your grandfather was."

  6. #206
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    Larry Gibson's Avatar
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    Tried the hydraulic method several times......never got too many primers out.......got water everywhere though.......

    Then getting the berdan primers of the right size was hit or miss.....needex special seating punches......gave up.......converting to boxer primers is/was a lot easier.

    Larry Gibson

  7. #207
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    Looks like I'm gonna have to scrounge up a proper mould to help feed my Steyr M95 in 8x56mmR. I have a sizeable stash of the 1938-dated Berdan stuff, but not having an efficient method for removing and replacing the primers has kept me from firing more than a couple of clips in the 20 or so years I've had the M95. I tried the hydraulic method of removal, but can't call my results anything resembling successful.

    Oddly, I bought a set of RCBS dies and a shell holder for 8x56mmR very shortly after I got the rifle. After reading this thread, looks like I'm running out of excuses for not putting them to their intended use!


  8. #208
    Boolit Grand Master Four Fingers of Death's Avatar
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    Quote Originally Posted by jrmartin1964 View Post
    looks like I'm running out of excuses for not putting them to their intended use!
    You and me both looks like.
    "I'll help you down the trail and proud to!" Rooster Cogburn.

    "Slap some bacon on a biscuit and let's go! We're burnin' daylight! " - Will Anderson (John Wayne) "The Cowboys."

    SASS Life Member No 82047

    http://s89.photobucket.com/albums/k228/4fingermick/

    Psycholigist to Sniper; 'What did you feel when you shot the felon Sargeant?'
    Sniper to Psycholigist; 'Recoil Ma'am.'

    From my Irish Ancestors: "You've got to do your own growing, no matter how tall your grandfather was."

  9. #209
    This was very helpful info

  10. #210
    There’s a guy on eBay selling steel sleeves. Took the brass and drilled out the primer pocket to .245 and used a steel rod from a lee loader to set it. Ran through a primer picker uniformer and then with the drill bit from the same person, drilled the flash hole

  11. #211
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    I tried the water depriming method a few weeks ago and I learned a few things that Id like to share. I took a few bolts that were half threaded and cut the threads off, then I took the ruff edges to a grinder and rounded the edges off to an angle, maybe 30 degrees. As a holder you can use a shell holder or a scrap piece of wood. In my case a scrap piece of 2x8, the bigger base was need as to not fall over when hit with a hammer. I did not mic the bolts, but the bolts that fit very loose, or even slid into the 7.62 x 54r case without any resistance did NOT result in a good deprimed shell on the first strike and sometimes not ever. however the cut bolts that fit very very snug/tight in the top of the 7.62 x 54r case resulted in a hydraulically deprimed case when struck with a hammer...not a claw hammer, a 1 pound hammer. Do not hold the drilled board with the other hand. This is why I used a larger piece of 2x 8 about 6x8 inches in size.........

  12. #212
    Boolit Buddy Twmaster's Avatar
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    I've found a driver handle for 1/4" drive sockets fits the neck on 7.62x39 perfectly and works fine for water decapping. I usually just set my case inside a suitably big socket wrench to allow the primer to pass when popped out.
    Mike

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    1 in office. 1 in prison.

  13. #213
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    I use a 5/16 bolt that has the threads cut off for deprimming 7.5x55 Swiss. I use the deprimmer cup from my 303 Lee loader. Works like a charm. +1 on the bolt sealing tight and a rag wrapped around the brass and your hand saves you from getting a shower. Luckily in Canada we can get berdan primers from time to time.

  14. #214
    Hi Larry, the secret to hydraulic decappers If your using the hammer type is the hammer, you need a heavy dead blow and a sharp strike, been converting 303Brit for years,,, if the primer is the Burdan #126 .250"dia DONT remove the primer but drill/mill a .200" hole in it drill out flash hole then use a primer pocket swage to turn the face of the primer back on itself, the military ring crimp holds the old primer in place and returning the primer face reduces the internal diameter just enough to get a good hold on a Boxer primer,,,,,,,,, This works for any case using the Burdan #126 primer

  15. #215
    Boolit Master uscra112's Avatar
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    ^^^^ Did this successfully with 7,5x55 Swiss to the tune of about 30 cases. Labor intensive, so since Norma had high quality Boxer-prime brass, I bought a batch and quit with the conversion. Keeping the drilling on center required that I start with a #2 center drill, then follow with #8 to clean up the Berdan cup and most of the anvil, finally #50 to drill a central flash hole through. Used my bench lathe.
    flectere si nequeo superos, acheronta movebo

  16. #216
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    I've always decapped berdan by puttin the case on a bolt closest to the neck size (held in a vice) then tap a #2 nailset (flattened on one side of the tip) into the edge of the primer, pry it out. Easy and quick no mess.

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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