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I just shot 20 more rounds of the BH 178gr Superformance through my SR25 EMR (20" 1:11.25 match stainless barrel).
No popped primers, although some of the brass shows discoloration around the primers. I did have one round nosedive on the feed ramp. It did not feed, of course, and the bullet was set back about 1/16". I loaded and fired this round with no ill effects. MV out of the 20" EMR barrel is 2684fps, corrected to the muzzle (70degF, 45% humidity, 900' ASL). Here's what the brass looked like: 
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