Priming Berdan rifle brass with shotgun primers

kjohn

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OK, this is not my idea to start with, so I'll credit the fellow who planted the seed. He made a post to the effect that he had scads of boxer brass but was short on rifle primers. He had the idea to use shotgun primers, of which he had an abundance.

I have experimented previously with some Czech/Yugo ? Berdan brass, but wasn't impressed. I was having trouble keeping the brass centered when drilling out the primer pocket to accept a shotgun primer.

Another good CGN'r posted the idea of drilling a hole in a hockey puck, just a wee bit smaller that the base of the brass, in my case it will be 30-06, 308 (7.62x51), 8x57, to start with. Then cut the puck in half, through the hole, side to side. Clamp the brass in the hole, and squeeze it tight in the vice on the drill press bed, then center it using the adjustments available on the vice. I drilled a couple of brass down through the mouth, to avoid having to deal with the little anvil sticking up in the pocket. I used a "C" letter drill bit, which works great for shotgun primers.(the tip about using a "C" letter bit came from another good CGN'r)

I turned the brass over, clamped it and centered it, then used a bigger bit and "chamfered" the base to allow the primer sleeve to sit flush with the base. I used a sleeve from a spent shotgun primer, tapped it in flush. I have a small supply of C-I-L 4B primers that were used to reprime the sleeve back in the day. I set the 4B into my brand new LEE hand primer and seated the primer. (this worked like a charm, but it won't work with a modern shotgun primer) Then I FL sized, belled and chamfered the mouth, and ...there you have it - a primed brass. These brass will be used for light rifle plinking loads.

Yes, I know it's a lot of fiddling around!! Today, the wind is blowing, it's snowing, so this is what I did. I should also credit my buddy Deaner, who drilled the precision hole and cut the puck in half. I will pay attention to any tips or suggestions regarding this little project.
 
OK, this is not my idea to start with, so I'll credit the fellow who planted the seed. He made a post to the effect that he had scads of boxer brass but was short on rifle primers. He had the idea to use shotgun primers, of which he had an abundance.

I have experimented previously with some Czech/Yugo ? Berdan brass, but wasn't impressed. I was having trouble keeping the brass centered when drilling out the primer pocket to accept a shotgun primer.

Another good CGN'r posted the idea of drilling a hole in a hockey puck, just a wee bit smaller that the base of the brass, in my case it will be 30-06, 308 (7.62x51), 8x57, to start with. Then cut the puck in half, through the hole, side to side. Clamp the brass in the hole, and squeeze it tight in the vice on the drill press bed, then center it using the adjustments available on the vice. I drilled a couple of brass down through the mouth, to avoid having to deal with the little anvil sticking up in the pocket. I used a "C" letter drill bit, which works great for shotgun primers.(the tip about using a "C" letter bit came from another good CGN'r)

I turned the brass over, clamped it and centered it, then used a bigger bit and "chamfered" the base to allow the primer sleeve to sit flush with the base. I used a sleeve from a spent shotgun primer, tapped it in flush. I have a small supply of C-I-L 4B primers that were used to reprime the sleeve back in the day. I set the 4B into my brand new LEE hand primer and seated the primer. (this worked like a charm, but it won't work with a modern shotgun primer) Then I FL sized, belled and chamfered the mouth, and ...there you have it - a primed brass. These brass will be used for light rifle plinking loads.

Yes, I know it's a lot of fiddling around!! Today, the wind is blowing, it's snowing, so this is what I did. I should also credit my buddy Deaner, who drilled the precision hole and cut the puck in half. I will pay attention to any tips or suggestions regarding this little project.

In the apocalypse/eotwawki, this guy is taking all of our wives.:LOL:(y)
Nothing wrong with tinkering around, especially during the winter.
 
Kjohn, I've been where you're at with these cases, but just bit the "bullet," and went back to decapping the berdan primers with the home made tool I have.

You're going to have to be very careful with pressures, because slightly after minimum specs, the new primer pockets will start "leaking" hot gasses against your bolt face.

Berdan primers are available in Canada, and they're about the same price as Boxer types.

In shot shells, the primers have "regular" pockets, with a small hole for the flash.

With the method you're using, the face of the primer becomes the face of the inside surface of the case, and it's not nearly as strong as everything around it.

That means the strongest part of the case now has a "large" weakness.

I had some nasty blow by when I used this method to utilize some of the excellent brass cases used to make hard to find surplus ammunition.

The shot shell primers were very tight when inserting, but there were still issues.

Be careful.
 
OK, this is not my idea to start with, so I'll credit the fellow who planted the seed. He made a post to the effect that he had scads of boxer brass but was short on rifle primers. He had the idea to use shotgun primers, of which he had an abundance.

I have experimented previously with some Czech/Yugo ? Berdan brass, but wasn't impressed. I was having trouble keeping the brass centered when drilling out the primer pocket to accept a shotgun primer.

Another good CGN'r posted the idea of drilling a hole in a hockey puck, just a wee bit smaller that the base of the brass, in my case it will be 30-06, 308 (7.62x51), 8x57, to start with. Then cut the puck in half, through the hole, side to side. Clamp the brass in the hole, and squeeze it tight in the vice on the drill press bed, then center it using the adjustments available on the vice. I drilled a couple of brass down through the mouth, to avoid having to deal with the little anvil sticking up in the pocket. I used a "C" letter drill bit, which works great for shotgun primers.(the tip about using a "C" letter bit came from another good CGN'r)

I turned the brass over, clamped it and centered it, then used a bigger bit and "chamfered" the base to allow the primer sleeve to sit flush with the base. I used a sleeve from a spent shotgun primer, tapped it in flush. I have a small supply of C-I-L 4B primers that were used to reprime the sleeve back in the day. I set the 4B into my brand new LEE hand primer and seated the primer. (this worked like a charm, but it won't work with a modern shotgun primer) Then I FL sized, belled and chamfered the mouth, and ...there you have it - a primed brass. These brass will be used for light rifle plinking loads.

Yes, I know it's a lot of fiddling around!! Today, the wind is blowing, it's snowing, so this is what I did. I should also credit my buddy Deaner, who drilled the precision hole and cut the puck in half. I will pay attention to any tips or suggestions regarding this little project.
I shoot a fair bit of brass in my shotguns (20, 16 & 410) I converted all of them to 209’s (200 magtechs, 100 .444 and 200 .303 Brit) I did one berdan primer 16ga that I found in my shop. I drill mine out on a lathe so centering is no issue. I use a “C” letter bit for the hole and a step bit for the counter sink. Counter sink .20 thou give a perfect flush mount.
 
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