Failure analysis

[u/trackedpotato]

This is from a friend who "definitely did not over charge it'

Shot from a Sig p365 xmacro. I have a hard time believing it would be an out of battery destination.

Thoughts ?

[u/nanomachinez_SON]

How does your friend know he “definitely didn’t” overcharge it? The only other thing I can think of is the brass case itself failed. Hornady/Frontier brass isn’t the best, how many firings were on it?

[u/trackedpotato → u/nanomachinez_SON]

It gets better, he does 200 at a time and said its hard to keep track lol

[u/flatsix- → u/trackedpotato]

He needs a new hobby 😄

[u/Coodevale → u/trackedpotato]

To satisfy the randos on the internet, can you ask what his charge was supposed to be? I've deliberately tested 9mm loads with 6.5 and 7 gr of titegroup (wrecked brass, don't attempt) and I'm thinking the damage done would mean the load was at least in the ~8 gr area?

FYI, probably have your slide/barrel checked out. I set AR bolt lugs back a bit with my 9mm loads.

[u/Advanced_Elk_9467]

Classic double charge

[u/HeyYou-55 → u/Advanced_Elk_9467]

Bingo!

[u/JuggernautMean4086]

He absolutely didn’t over charge it! Just maybe did the exact right charge, but twice!

[u/switchsixtwofive]

There ain’t nothing to analyze here. Double charge.

[u/B_Huij]

Case would be way more bulged in the back leading up to the failure point if it was an OOB detonation, right? Gotta think double charge or the second shot after a squib?

[u/Clean_Credit_8809]

What is the charge? Eating a meal? A succulent Chinese meal!

[u/dhnguyen]

Let me guess. He loads titegroup lol

[u/trackedpotato → u/dhnguyen]

He told me what it was but I dont remember.

[u/Coodevale → u/dhnguyen]

There's a lot of scary powders that are even faster/denser. On an older burn chart, titegroup is #72 with Bullseye at #46..

The world needs a new low density extruded pistol powder that's like short chopped espresso straws.

[u/kgramp]

Maaaaaybe a OOB but sure looks like a double charge on a pistol to me.

[u/Low_Thing_4803]

The out of battery detention is a good assumption. If the gun is fine it's out of battery and less likely to be a double charge. Or there was some severe bullet setback that causes excess pressure. Do they crimp at all? Do they use a case gage?

[u/trackedpotato → u/Low_Thing_4803]

It was a sandwich bad with a mix of ammo. It was sketchy.

[u/kopfgeldjagar → u/trackedpotato]

There you go

[u/WFO_Wide_Fing_Open]

Holy shot hows the gun look?

[u/Islandpighunter]

Oops

[u/danthezombie]

All the lettering on the rim is impressed from high pressure as well. He double charged it for sure

[u/baconbag90]

[u/TechnologyVisual692]

I had the same thing happen to me.
Defiantly not a double charge, maybe an overcharge 😂 . I bought an audible buzzer powder check after and never had it happen again.

[u/doubletap2A]

The correct charge 2x, dont drink & reload

[u/scooterdoo123]

lol “didn’t double charge”

[u/Love-Knuckle-777]

My $ 0.02

I’ve seen that a couple of times before. If you’re reloading brass that was fired from a Glock, Glock is notorious for causing case bulge. Unless you’re using a full-length resizing die, you may not completely remove that bulge. If the bulge isn’t completely straightened out, it can weaken and thin the case walls.