Hi guys, noob in Ohio here. Pardon my ignorance, but I couldn't think of a better group to ask.
I read a lot about lighter springs to accommodate soft loads, so I loaded some rounds to investigate.
My lightest 9mm rounds are:
NOTE: Don't use my data, I've no idea what I'm doing.
3.0gr Unique, CCI500, Xtreme 124RN (.355) @1.150, and
2.8gr Titegroup, CCI500, Xtreme 147RN (.356) @ 1.140.
To cover my bases, the rounds all plunk happily, don't shrink or set back and aren't over crimped. (the 147s don't feed well in the 75 at this length, so I used them in a P07)
Both of these loads cycle a 75BD and a factory fresh P07 Duty with stock parts. The P07 has a very hard recoil spring, so I'm puzzled..
I don't really need a softer load, and I've not chronoed.
But shouldn't I be seeing failures to eject, stovepipes? I shot a few hundred each yesterday. Not a single issue, and ejection was decent.
Anybody care to ponder aloud?