Converting berdan cases to use boxer primers.


WARNING Only you are responsible for your own safety.
This is a proof of concept video, not an instructional video. You are advised not
to attempt this. Hey everyone. Lately I’ve been exploring reloading
berdan primed steel cases. I think this is a pretty interesting
topic because of the high price of boxer primed brass right now and the really
wide availability of what’s typically discarded berdan cases. Sometimes they’re steel, sometimes they’re brass, I found they’re
usually steel. This is a little bit more time consuming
than standard reloading but after you do the conversion you can reload them just
like normal I’ve reloaded steel cases numerous times
without issue. In a previous video I made a simple modification to the
large rifle boxer primers to fit them into these steel 7.62×39 berdan cases. I thought it was interesting because no
special tools were needed to accomplish this. Today’s a little different I’m going to
show you how I converted the 7.62x54r berdan cases into large rifle boxer cases. So evidently there’s numerous sizes of
berdan primers the 7.62x54r’s have a really huge primer pocket, way too large for a standard large rifle primer. So after trial and error the technique
that I finally settled on was creating a a copper bushing from standard quarter-inch copper tubing. You can pick this up at any hardware store, I
went and bought one foot of it for this and it cost a little over a dollar. Besides your standard reloading gear
you’re also going to need a drill and something to cut the copper tubing as well as a primer pocket swager. This is the RCBS swager. It was pretty reasonable, about thirty
dollars and it’s designed to remove the primer pocket crimp found on some
brass. We’re going to be using it to form the
copper bushings. To get started I’m going to remove the
berdan primers from the steel cases using the hydraulic depriming method. I have a more detailed video about this you can watch for clarification. Ok, we’ll need to cut our copper tubing into short pieces. I found this was easy to do with a dremel tool and a cutting disc. You can see I’ve used a deburring tool before making each cut but I’ve done this previously without deburring and it worked ok. Here I’m removing the berdan anvils and creating a new central flash hole. Removing this anvil makes room for the boxer primer which contains its own integrated anvil. Be careful not to drill all the way through the base you want a reasonable size flash hole. Now at our press we’re going to put the primer pocket swaging mandrel in and the case stripper on top of it. You can see how that works. Up here we’re got our RCBS primer pocket swaging die. We’re going to place our small piece of
copper tubing on the lubricated mandrel with the rough side down we’re going to get it started by placing a solid object blocking the top of the press simply raising it up and pressing. I’ve found this is an important process
because it starts the copper tubing on the mandrel whereas if you start it in the case it
pushes to the bottom of the primer pocket and fills the bottom whereas when you start it on the mandrel
halfway it seems to evenly fill out better in
the case. Finally we will go ahead and get our case
started, get everything lined up and simply press
it. And there’s our large rifle boxer
primer pocket. We simply need to clean up the excess
copper that’s been squished out of it during the swaging process. Now we’re going to remove the excess copper from our cases. Now that we’ve removed the excess
copper one more trip through the primer pocket
swager will clean things up real nicely. Now we just go ahead and full-length
resize like normal. Now we prime with the standard large
rifle primer. Now at this point we’ve got our live
ammo you can continuously reload like you
would standard boxer brass. Here we’ve got our four rounds of 7.62x54r loaded up with 180 grain cast bullets. Loading reloaded ammo into the Mosin Nagant. Previously fired from a Romanian PSL 54c Semi Auto Bullet Casting is a great hobby to compliment reloading. If you found this video useful or interesting then you might want to check out my channel and consider joining me on facebook for discussions, feedback, and suggestions. Thank you for watching!

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