Hydro punch

dodgyrog

Well-Known Member
#4
I had one which I sold for a large profit!!! Excellent bit of kit but I prefer my Wamadet to get the Berdan primers out.
The advantage of military brass is that it is good quality and nobody wants it - therefore it's free!!!!
 

Woodsmoke

Well-Known Member
#5
Daft question time. Is it worth drilling out the primer pockets so you can fit a boxer primer? Or are the pocket dimensions different?
 

dodgyrog

Well-Known Member
#6
It's not worth it and the primer pockets don't match
Trying to get Berdan primers is a pain! I have enough to keep me going but not enough to pass on!
 
#8
Made, usually, to de-cap Berdan primed 9mm Parabellum aka 9mm Luger brass.

Uses just a drop of water so much more efficient than the Wamadet Heydraulic Decapper. There will be a spigot or "end" on your prime that is a snug tight fit into a 9mm case. You place the thing on the base (that has a hole in the centre) and hit the top of the Prime with a hammer. The drop of water drives the primer out of the case.

The biggest drawback is that, nowadays, time is money (it takes a lot of time), the cases get wet so need to be dried, Berdan primers are now virtually unobtainable, eventually you'll mix up a Berdan case with a Boxer case and wreck the de-capping pin and rid in your die set, seating Berdan primers in a progressive press is an explosion risk.
 
#10
Made, usually, to de-cap Berdan primed 9mm Parabellum aka 9mm Luger brass.

Uses just a drop of water so much more efficient than the Wamadet Heydraulic Decapper. There will be a spigot or "end" on your prime that is a snug tight fit into a 9mm case. You place the thing on the base (that has a hole in the centre) and hit the top of the Prime with a hammer. The drop of water drives the primer out of the case.

The biggest drawback is that, nowadays, time is money (it takes a lot of time), the cases get wet so need to be dried, Berdan primers are now virtually unobtainable, eventually you'll mix up a Berdan case with a Boxer case and wreck the de-capping pin and rid in your die set, seating Berdan primers in a progressive press is an explosion risk.
brilliant thanks.
Steve
 

8x57

Distinguished Member
#11
Daft question time. Is it worth drilling out the primer pockets so you can fit a boxer primer? Or are the pocket dimensions different?
The same company that produced the Hydro-punch also produced a die for converting 9mm berdan primed cases to boxer primed. Unfortunately it wasn't an entirely reliable system due to a number of variables and the new boxer primers would be a very loose fit in some cases and often blew out on firing.
 
#12
Here's a link on the net that explains it well:

http://www.thefreelibrary.com/Prime+Reloading+Co.'s+Berdan+decapper.-a03451927

The extra problem of converting Berdan flash holes to Boxer flash holes is that the "hole" is very big. And thus the transmission of the flash to the powder is more brutal. This could affect burn rate and so affect pressure. Another risk if using, say, heavy charges of Blue Dot or, at the faster end, of Bullseye.
 
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