Sig Sauer Ammo Issues

[kmk1012]

I fired four rounds of the 220gr subsonic 300blk through my suppressed Aero Precision pistol (8.5") and had three split necks out of the four. Is this a common issue with their ammo? I haven't had any issues with any other brand either super sonic or sub. Here's a pic of them.

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[DizzyJ]

That sucks. My father in law had a squib from the Sig brand of ammo a couple years ago. Other than that I have no personal experience with them.

Maybe they didn't have it annealed properly?

 

[Koda]

Thats an issue that should be brought to Sigs attention. Id be interested in hearing their response to this.