Young man at range today with relatively new ar complaining about dirty, gas to face and split cases. Allegedly old (Dad's), factory 50gr hpbt Federal. Split runs lengthwise from rim (yes, into primer pocket) forward a half inch up the case, not around the case forward of the web. It appears the web was cracked, also. Said he'd shot 400 of em and a few other different bullets no problems. But this box (allegedly 200 per box) was splitting cases as described.
Has anyone seen this, and what would the mechanism of failure be? Silver primers leaves me suspicious of them being reloads....
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