No mention is given of the berdan primer size and there are some reports out there of other Fiocchi brass being hit or miss on quality.
I would order some myself, but there appears to be no source of berdan primers in the US since PMC ceased importing primers into the US. There are methods to convert the berdan-primed cases for boxer primers, but its probably just as easy to convert 7.62x39 brass.
I selected the proper drill bit by fitting the bit to the flashhole of a manufactured boxer-primer case.
For a drill bit guide to assist in centering the bit, I used an inverted 9 mm case set inside the .401 case. The drill bit had a tendency to follow the berdan flashholes and end up off-center even when using the 9mm case as a guide.
Next step was to try a centering tool bit to set a cone-shaped depression in which to start the bit. Works better.
Removing the anvil:
I tried a Lee primer pocket cleaner tool, chucked up in the drill. Works okay when the drill bit had driven through the anvil, but not so well when the drill bit had driven through slightly off-center. When using the centering tool, the new flashhole hole is centered better and the anvil more compromised- a hammer decapping tool popped the remains of the anvil out well enough.
I might next try a four-flute milling tool to remove the anvil, perhaps before drilling the flashhole.
Swaging the primer pocket
I used a C&H press-mounted primer pocket swager which has a taper that forces casehead material into the primer pocket, reducing the berdan primer pocket to the correct size to hold a boxer primer. Works real swell.
Easiest step was to prime the case with boxer Winchester large rifle primers using a Lee priming tool. Primer seats well and seems tight in the pocket.
Photo shows (1) a case with berdan primer intact (2) new flashhole drilled (3) primer pocket cleaned (the flashhole on this one is slightly off-center) (4) primer pocket swaged and boxer primer installed
On the hole drilling to re-work the Berdan cases. You might try an end cut micrograin carbide mill. Available as small as 1/32" diameter but there should be one available the same size as the anvil and hole. Create a pocket in some soft jaws to hold the case rim up and once your mill is centered on the primer pocket you could plunge mill the anvil down and then continue through for the hole of the boxers. This works in drill presses as well but they need to be secure.
If what you find in the way of a drill press is sturdy enough you might be able to perform plunge milling. Might not hurt to invest in a small dialed cross slide table which you can use to position work more accurately one the drill press table and also allow a few inches of travel for some light milling projects. There's also some small combination milling&lathe machines floating around the planet and there's always a used one somewhere for sale. Might give you a bit more maneuverability and function. Companies like Smithy, Shoreline, Prazzi and there's others, these are all I could think of right now.
Just my 2cents worth, I just received 500 rounds of this brass and much to my delight the primer pocket measures out at .210. I was debating if I did the right thing by ordering Berdan type cases. I quickly made a test of flattening the anvil with some expedient tools and wound up with a piece of brass needing only to drill a new flash hole. A large primer is too snug to press in with finger pressure and I plan to use primer sealant to guarantee that it stays put. If the pocket loosens then I will concern myself with the swaging technique. Being paranoid, I just placed another order for 500 more cases, just so I NEVER have to fear running out of brass. Now I just have to figure out how I can make .410 jacketed bullets into .406ish bullets. All this and I still haven't picked up the rifle! It will be safely in my clutches this weekend. (Add evil laugh!). When I get a wild hair, I tend to go into it full tilt. The worst part is that this grew out of a search for a wrecked 1905 Winchester to perform sinister experiments on. I just managed to get side-tracked when I found the 1910 and a touch of that pesky nostalgia kicked in and I decided I would make up for the fact that I owned one briefly 20 years ago. That one, sadly, was only a 2 digit serial number and I never shot it, even though I got a bag of ammo made up on converted 7.62x39 brass. As usual, I am too busy working with my projects to figure out when I will go to the range and shoot them. Such is life.
Post by mtmarfield on Nov 26, 2013 18:22:49 GMT -5
In the primer pocket swaging phase, am I to understand that the two "berdan flash holes" are still 'open', or not, when the central flash hole is drilled? My thinking is that if not, one would have three flash holes, and greatly increased ignition of the powder. This may, or may not, be a good thing. Comments?
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deerhide: I ripped 5 'at the moon' last night out of my 1905 (dom1906). I don't have to worry about finding ammo; sometime in the past it was re-barreled from .35Win.(on the bottom of the mag) to .30 Carbine. I got the Cody letter....no mention of a new bbl. Jim
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deerhide: I'd like to have a Rem mdl 81 on .300 Savage.............how scarce are they?
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glenerd: Just joined. Lifelong gun owner, retired Army officer. Have 1905 Winchester WSL.32 inherited in 1961 and never did anything with it. It is in decent condition, all parts are there, no cracks in stock, no rust.
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chrisb: So, I made a tool myself.
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buckeyeofmaine: I have 4 boxes of 401 Winchester Factory ammunition 200 grain with three original Clips looking for a home. I can be reached at 207 659 6348 or BuckeyeofMaine@aol.com aol.com
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starczech: If anyone has a spare or unneeded/extra 35 WSL magazine and is willing to consider selling it...I'd sure like to hear from you. Maybe we could work something out for a price or barter. Think about it. Thanks.
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aaarms: Hi new here,i have one of these in about the same condition but I know nothing about them,like worth mainly I want to sell it but don't no what to ask for it.thanks.
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remy: Anyone know where to get Model 8 forearm.
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