I would not call 1116fps pushing a 158 gr 357 4" to the max. BTW, extraction was a non-issue.
I simply was trying to determine a possible caus for this anomaly. I think we found that a few posts ago. Before I make 500 of these super shooters, I wanted to make sure I don't have the Barnes Bullet situation which is low velocity at high pressure. Although pressure signs were moderate. This is a 70's 19 and I want good accuracy at moderate velocities and pressures. I guess I'm there!