Chamber terminology

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Coyote Chris
Posts: 320
Joined: Sat Jul 17, 2004 11:29 pm
Location: Spokane

Chamber terminology

Post by Coyote Chris » Wed Mar 27, 2019 3:14 pm

I have a good friend...a nice young man of 27...state trooper...loves hunting, guns, reloading, and historical weapons , etc. but he has never shot BPCR. Now he has bought a replica of a 1884 Carbine in what? 45-70. And I am going to teach him how to reload for gun with black.

So I made up a school of talking points. But in my school where I describe chambers, I found out I have no idea what the official term is for the area just in front of the case mouth that takes the chamber size to free bore size. I have heard "Shoulder, case transistion, neck, and step". What is the official term?
[attachment=0]throat.jpg[/attachment]
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BFD
Posts: 1908
Joined: Mon Jan 21, 2008 7:36 pm

Re: Chamber terminology

Post by BFD » Wed Mar 27, 2019 3:26 pm

There is no official term. Many think there is, but they do not uniformly agree with each other. Use a diagram and one set of vocabulary used consistently and you will communicate. Throat, leade, freebore, etc are all viable terms, but a diagram in unequivocal.

Coyote Chris
Posts: 320
Joined: Sat Jul 17, 2004 11:29 pm
Location: Spokane

Re: Chamber terminology

Post by Coyote Chris » Thu Mar 28, 2019 8:14 pm

Wow...who knew? I suspect there was one term used in the feral govt arsenals, still another in private industry, and still more in other countries.

BFD
Posts: 1908
Joined: Mon Jan 21, 2008 7:36 pm

Re: Chamber terminology

Post by BFD » Thu Mar 28, 2019 8:17 pm

Coyote Chris wrote:
Thu Mar 28, 2019 8:14 pm
Wow...who knew? I suspect there was one term used in the feral govt arsenals, still another in private industry, and still more in other countries.
What you say may well be true, but this is none of those places. This is the Wild Web and here, anything goes.

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