9mm stepped brass, scrap it.

[mapper]

I just saw this elsewhere

Also to AVOID brass made in this same manner besides Maxxtech, toss these headstamps into the scrap bin too.... Ammoload, IMT, FM marked brass, it is all made in this way with the sharp step in the casehead.

Another reason we inspect our cases prior to loading.
The link belowcshows a cross section of the case.
https://thefiringline.com/forums/sho...d.php?t=581481

[AUfish11]

Thanks for the info. Haven't seen this yet but something to keep an eye out for.

[Cattle/Horses]

Mapper, I'm just wondering - why scrap it? What happens when reloading or firing the reloaded rounds?

[e.money83]

I would think it's mainly the case volume being different is going to produce different pressures and need different powders than anything you are going to find recommended in any manual. Published information used in regular cases may be dangerous used in these cases.

[SB]

Case splits where the step happens I think.

[30plusretlaw]

Case splits where the step happens I think.

Yes, That's the main reason.

[mapper]

assuming your die can size this with the step, which I think would not play well with dies,
Then you have reduced capacity, then the step where the brass thins out I'm thinking may crack/separate, then you would have to have the correct length bullet to seat in it.

9mm range brass is what 3-4 cents each.
Just does not seem worth it to me.

[mattb]

Just from looking at the angles structurally, that sharp corner is going to create a stress riser in the case wall. That's bad juju; you can expect a failure there because math and science.

[Evil_McNasty]

Wow, I have never seen that before. Thanks for the heads up

[Dale Gribble]

I'd probably just load it, but my 9mm loads are not even close to the edge to start with.