Really? Anyone know if this is limited to recent lots? I ask because a lot of people fired a lot of Federal XM193 over the years [1] (including myself) and this is the first I'm hearing of it. So, I'm wondering if it's a recent lot or lots. If it were a systemic problem, one would think we'd be hearing about many more blown rifles.
[1] - Ammunition review and reference
Same here, I have quite a bit of XM193 American Eagle ammo, (mostly 2-3 years old now) and I've never had any issues.
My most recent Federal ammo purchase was a box of XM855, however I've not used any of it yet.
Thanks for the ammo review link, that's good information.