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Hydraulically depriming Berdan Brass and US source of Berdan primers

Discussion in 'Handloading and Reloading' started by hang fire, Apr 28, 2013.

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  1. hang fire

    hang fire Member

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    Did a search and reloading Berdan primed brass has been addressed, but as this is a bit different, will throw it into the mix.

    I just ordered 480 rounds of Swiss 7.5x55 GP11 ammo and came across the following for reloading the excellent GP11 Berdan primed cases.

    The use of a reloading press and Lee universal depriming die, to hydraulically deprime Berdan Brass, it appears to be simple, fast, and involves little effort.

    http://www.youtube.com/watch?v=ZQNDgjcgofY&feature=fvw


    And then these sources of Berdan primers available here in the US.

    http://www.grafs.com/retail/catalog/...ategoryId/3986 (currently out of stock)

    http://www.dagammo.com/shop/non-corr...mers-p-47.html
     
  2. GaryL

    GaryL Member

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    That's one of those, "why didn't I think of that" ideas.
     
  3. hang fire

    hang fire Member

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    Ditto +1 on that.

    I will be going that route, for as I understand it, the GP11 brass is some of the finest out there., so I look at it this way. I bought 100 pieces of 7.5x55 Prvi bras from Grafs, and it was $52.00. Got the 480 rounds of GP11 for $242.00, or $50.00 a hundred, so basically got the live ammo for free, and the once fired better quality brass cheaper than the unfired.
     
  4. ArchAngelCD

    ArchAngelCD Member

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    How many different Berdan primers are there? Is it hard to figure which ones you need for a certain cartridges?
     
  5. Jesse Heywood

    Jesse Heywood Member

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    Last edited: Apr 29, 2013
  6. TheSaint

    TheSaint Member

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    Interesting. I know a guy who has tons of surplus Mosin ammo with the Berdan primers. I'll send this on to him.
     
  7. hang fire

    hang fire Member

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    They are numbered, and there are more choices due to different diameters and seating depths.

    The .217 large rifle primer would be the one of most possible interest to reloaders here in the US. I suspect in the not to distant future the reloading with Berdan primers will be on the increase. Due to lack of correct reloading equipment, presently there is more work involved in reloading with Berdan primers. But as in all things, if sufficient market demand arises and a profit is to be had, some entity will step forward to fill the need.

    http://www.dagammo.com/shop/non-cor...7/kv762n-large-rifle-berdan-primers-p-47.html

    The Nato (.217") size and correct Cup height for all .217" Berdan Pocket cases of "European Military Rifle" calibers (7.9mm, 7mm, 7.65mm, 8mm Steyr, Euro .30/06, Euro .303 Br., 7.62R Albania, Czech, etc. 7.5MAS, 7.5 Swiss, 6.5 Swede, 7.62 Nato.)
     
  8. kludge

    kludge Member

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  9. hang fire

    hang fire Member

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  10. howlnmad

    howlnmad Member

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    Finally, a way to reuse this pile of 7.62x54R brass that I've been saving.
     
  11. fguffey

    fguffey Member

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    “Hydraulically de-priming Berdan Brass and US source of Berdan primers”

    Not a new ideal, Hydraulic de-priming has been around for years, case forming instead of fire forming has been around for years, something about water that makes it a solid, a fluid and at the same time allows it to flow, I have used a solid metal rod and hammer, problem, the Old Western Scrounger sold Berdan primers at the same cost of bullets. There was no advantage, forming cases” It was heaper to purchase forming dies and as was pointed out, it is a bit messy, in the old days it was messier

    F. Guffey
     
  12. Hangingrock

    Hangingrock Member

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    Yes I remember seeing this done in the early nineteen sixties.
     
    Last edited: Apr 29, 2013
  13. kludge

    kludge Member

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    Works for me.
     
  14. hang fire

    hang fire Member

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    Granted there is really nothing new under the sun, but be that as it may. Some people need reminding, OTOH, for most people, history started on the day they were born, and there are a lot of post 1960s reloader’s out there.

    I am going to be doing it to accumulate some excellent low cost brass like the GP11 7.5x55 Swiss. Not to mention I am 74, and long retired, so don't mind the extra effort and time involved while enjoying my hobbies.
     
    Last edited: Apr 29, 2013
  15. hang fire

    hang fire Member

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    Works now for me, but did not before, got the "Video currently unavailable" on a blank screen.
     
  16. Hangingrock

    Hangingrock Member

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    The approximate compressibility of water 0.2%/1000PSI
     
  17. grubbylabs

    grubbylabs Member

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    Either way it looks like a good idea if you have a fair bit of this brass hanging around and it gives the hand loader more options.
     
  18. hang fire

    hang fire Member

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    Pays to have a lot of respect for highly compressed water and other liquids.

    About 50 years ago I worked as a maintenance mechanic in a Reynolds's aluminum extrusion plant. IIRC, the huge old Schulman horizontal aluminum extrusion presses operated at 46,000 psi. (today they have extrusion presses operating at 4,000 tons) It took an entire row of large hydraulic pumps, with rather small reciprocating plungers to achieve the pressures required.

    One day a press operator was standing over a two inch line when it burst, literally cutting him in half.
     
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