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CptCurl
.450 member

Reged: 01/05/04
Posts: 5325
Loc: Fincastle, Botetourt County, V...

Re: Charles Lancaster oval bore rifles
05/08/25 10:05 PM

Good report! I trust all will proceed equally well.

As for the fireforming, let me suggest that you anneal the Bertram 500/416 brass before blowing it out.

I have blown out at least 100 Hornady .470NE cases to .500 3-1/4" (straight wall). My method is to use 11.5 grains of Unique or Red Dot (Bullseye equivalent), fill the case with cream of wheat, plug with a wad of newspaper balled up, and use for "dry-fire" practice. I have never had a case not to expand perfectly. However, I do notice that Hornady brass always exhibits color from annealing, which must be their final process.

On the other hand, I have found some Jamison brass to be rather hard and in need of annealing when purchased. That may be your problem.

I hope this helps. I'm not trying to be a "know-it-all."

Curly

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Post Extras

Entire topic
Subject	Posted by	Posted on
Charles Lancaster oval bore rifles	CJF	05/08/25 10:29 AM
Re: Charles Lancaster oval bore rifles	DarylS	05/08/25 12:34 PM
Re: Charles Lancaster oval bore rifles	CptCurl	05/08/25 10:05 PM
Re: Charles Lancaster oval bore rifles	CJF	05/08/25 10:59 PM
Re: Charles Lancaster oval bore rifles	CptCurl	06/08/25 12:26 AM
Re: Charles Lancaster oval bore rifles	CJF	06/08/25 01:50 AM
Re: Charles Lancaster oval bore rifles	CJF	06/08/25 01:57 AM
Re: Charles Lancaster oval bore rifles	CJF	06/08/25 02:29 AM
Re: Charles Lancaster oval bore rifles	CJF	06/08/25 02:32 AM
Re: Charles Lancaster oval bore rifles	DarylS	06/08/25 04:16 AM
Re: Charles Lancaster oval bore rifles	93x64mm	06/08/25 06:08 AM
Re: Charles Lancaster oval bore rifles	CJF	06/08/25 06:33 AM
Re: Charles Lancaster oval bore rifles	casper50	08/08/25 02:57 PM
Re: Charles Lancaster oval bore rifles	CJF	09/08/25 02:36 AM

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