I have chrono'd DoubleTap's 125gr Sierra 357Sig load out of a Glock 23 with a 4" Storm Lake drop-in barrel. Averaged ~ 1452fps but the extreme spread was like 130fps or thereabouts. IIRC the lowest was 1388 and the highest around 1510 or so (this is from memory but I did post the results here at the time).
Nonetheless, I would use that load without question.
ETA---looked it up and the low was 1388 and the high was 1542 for an extreme spread of 154fps! I was correct about the average velocity though of 1452.
"...there's a man with a gun over there, tellin' me I got to beware..."
Last edited by ABNAK; 05-09-2012 at 16:28..