I don't run my press automated, if that's what your referring to, however manuel with the Lee U die it runs perfect. I do lube my brass with lanolin and alcohol mixture..
That's an interesting statement "Red Ryder" I've loading over 30k on my 650 in the last year and half and have never come close to the firework show your describing!
Did you experience any high pressure signs with the 115 with either primers?? I'm currently running 10. 0gr of SW 124 JHP V2 and was thinking about trying the 115 JHP V2
These are becoming very popular around here at our local matches..
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I switched back to my U-die as well didn't want to have issues with bullet set back loading 9mm major.. I am using it load my 40 Cal bullets.. So far it's working fine.
Have you tried putting back the mags to there original specs prior to all the issues. Assuming you have the old parts.. Step by step process of elimination?