Vortex Venom on my CZ shadow 2 147 reloads right at 132PF, about 8,000 rounds no issues at all.
I replaced it with a 5MOA SRO and put the venom on my Ruger Mark III competition .22.
I've got about 3000 rounds with the SRO and so far so good. I have one on my M&P 9L as well
with about 1500 rounds through that one and again no issues. The M&P is my back up gun for USPSA
and my main gun for steel challenge, so the CZ sees a lot more work. I regularly shoot "off the shelf" factory 147 and 124 through
the CZ at practice sessions as well, so It may be tough to decipher if softer loads extend life or not , because I mix it up all the time.