Questions on 180gr 40 S&W OAL and over-pressure dangers...

[Waylander]

There’s no way in hell I’d even approach max with Titegroup. It has extreme pressure spike when loaded warm.

[markm]

Definitely noted.

[markm]

Here's the best pic I could get of the PMC brass bulge. They're not massive bulges, but they're there.

[tangolima]

It doesn't look like a Glock bulge. It is too high above the web and too gradual toward the brass mouth. A bit over sized chamber + warm load could cause bulge of such kind. Mostly it will be sized down with regular sized die. I wouldn't worry about it.

A bona fi Glock bulge can be seen here
https://www.thefirearmblog.com/blog/...m-auto-kaboom/

-TL

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[markm]

It doesn't look like a Glock bulge. It is too high above the web and too gradual toward the brass mouth. A bit over sized chamber + warm load could cause bulge of such kind. Mostly it will be sized down with regular sized die. I wouldn't worry about it.

Makes sense. I've only seen this on my forties. But yeah.. I'd assume a regular resize would smoosh it back into shape.

[markm]

Couple of factory 180 gr chrono results from Saturday: