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Canadian brass boxer? |
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paddyofurniture 
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Joined: December 26 2011 Location: NC Status: Offline Points: 7942 |
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 Topic: Canadian brass boxer?Posted: May 02 2023 at 9:37am |
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Hey,
When did Canadian brass become boxer primed? Roughly year wise. I see at shows older once fired Canadian brass for sale from time to time. Is it worth buying? What does it take to be reload able? De- priming Full length resizing Annealing Priming Reloading Thanks Ed
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Always looking for military manuals, Dodge M37 items,books on Berlin Germany, old atlases ( before 1946) , military maps of Scotland. English and Canadian gun parts.
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britrifles
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Joined: February 03 2018 Location: Georgia, USA Status: Offline Points: 8404 |
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Posted: May 02 2023 at 10:57am |
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I'm not sure exactly, but I do have 1942, 43 and 44 Defence Industries (DI) brass that is boxer primed. Very good brass; I've reloaded it at least 40 times. You can see that this brass was annealed in the neck after it was formed.
I went thru an initial batch of about 200 cases (reloading about 40x), my second batch of 200 ish is now also showing case head cracks. I don't think I've had any neck cracks in this brass. Cracking circumferentially about 1/2 inch above the case head is always the failure mode, but not until many reloads. I'm a believer in neck sizing only with a Lee collet die, this minimizes work hardening of the neck. I do this for about 15 reloads at which point I can feel resistance in locking the bolt, so I will then do a "partial" resize to bump the shoulder back a few thousands.
Since this brass was fired in an unknown rifle (i.e. not yours) you may have to perform a partial length resize. But, you can first check if you can chamber a case without resistance to fully lock the bolt, if so, just neck size it. I don't anneal cases typically. I have on a few occasions with very old brass to see if it would stop the necks from cracking (not on DI brass thought). |
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Honkytonk
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Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 5190 |
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Posted: May 02 2023 at 11:09am |
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I just finished shooting a box of the same. Seems like stout brass, but depriming was a bee-atch! I suspect age, corrosion really stuck those primers in! And no... they weren't Berdan. Done that before when I was first starting oot! I saved them for the Zombie Apocalypse, but PPU is my choice of brass!
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paddyofurniture
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Joined: December 26 2011 Location: NC Status: Offline Points: 7942 |
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Posted: May 02 2023 at 12:10pm |
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Thanks
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Always looking for military manuals, Dodge M37 items,books on Berlin Germany, old atlases ( before 1946) , military maps of Scotland. English and Canadian gun parts.
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britrifles
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Joined: February 03 2018 Location: Georgia, USA Status: Offline Points: 8404 |
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Posted: May 02 2023 at 12:13pm |
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The primers are crimped/staked in place, so after removing, you need to ream the primer pockets (I use a Wilson primer pocket reamer). That puts a radius on the opening making re-priming very easy.
Ed, what is the headstamp of this brass? |
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paddyofurniture
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Posted: May 03 2023 at 6:44am |
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Most I see are dated in the 40's.
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Always looking for military manuals, Dodge M37 items,books on Berlin Germany, old atlases ( before 1946) , military maps of Scotland. English and Canadian gun parts.
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