Interesting stuff, thanks all.
Consensus seems to be heavier bullets, and mid to higher pressure loadings, yes?
I've only ever loaded up to 147gr. Those of you loading 158gr (and higher), any issues with bullet length and case volume? Are they carbine-only loads, or do you have success getting the same ammo to run in pistols?
I love running 158+ in my pistols. Reminds of the "softness" push of the 230gr in a full size heavy 1911.
My heavy 9mm load for my Dlask 1911 9mm commander and Glock 19x (also a "match" barrel but it's throated like a #### star) :
Super mild and no pressure from either the 1911 Kart Barrel, Dlask Barrel, Glock Factory barrel or Glock "match" barrel. The only thing I have to be careful is with the Kart 1911 match barrel the chamber/throat doesn't allow me to seat further than 1.130".
3.4 gr N330 @ 1.135 with Bayou 160gr hitek supercoated
No issues cycling or last round slide open but I use a very slightly reduced recoil spring. I use a 12lbs on the 1911 commander and I think I use a 15 or 16lbs on the Glock. Honestly I could use a full recoil recoil spring and it would probably work fine, doesn't look like it's struggling with N330 except at the starting load at 3.0
Official book value from VV for 9mm standard and 165gr is:
N330 0,19 3.0 224 735 0,23 3.5 264 866
https://www.vihtavuori.com/reloading-data/handgun-reloading/?cartridge=89
These figures are actually pretty accurate, I usually get about 800FPS from my 3.4gr/160gr. At 3.0 you might have to swap recoil springs because it will might short stroke. From my old notes, I think it would seldom short stroke my G19x at 3.0gr with the factory spring and a X300 attached when I did some load dev 3 years ago.
N320 is pretty difficult to get to cycle a pistol with 160+ but you might get it to work in a PCC with a really lightweight spring, I think I was able to but I just prefer to save the N330 for that and keep N320 for my 147s
N330 is absolutely magic for the 9mm 158+ and also for subsonic 300BLK in a bolt gun. I was hitting a 8in steel gong 9/10 at 400m with my amax 208 load, 990fps single digit ES but that's for a different thread.