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Old December 27, 2012, 07:57 PM   #1
Bart B.
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Join Date: February 15, 2009
Posts: 4,838
What Part of the Case Body Around its Pressure Ring Expands the Most When Fired?

I've seen in print and heard folks say the following; pick one as your choice:

1. The top of the case where there's lots of clearance as its bottom rests in the bottom of the chamber when its fired.

2. The thinnest part of the case as that expands the most from pressure.

3. The part of the case where the extractor presses it off center in the chamber.

4. The part of the case opposite where the extractor presses it off center in the chamber.

5. The part of the case that's at the widest point in the chamber; all chambers are not perfectly round.

6. Some other part; explain: _____________________________ .

Note 1; the pressure ring's typically referred to as that part about 1/16th inch or so in front of the extractor groove, belt or rim; depends on case type. It's usually more/higher/bigger at one point around it than the rest.

Note 2: consider those cases whose pressure ring bulge is the same height above the case body right in front of the extractor groove; even all the way around.
__________________
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Last edited by Bart B.; December 28, 2012 at 11:06 AM.
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