I have been using PC with several of my rifles, most notably my Lee Enfield, which seems to really like my 170 grain spire point plain-based bullets (Lyman #2 and Smoke's Clear), but at only about 1800 fps.
Today I tested my 30-30 using Hornady load data for the jacketed 170 grain flat point.
For the jacketed bullet, my Hornady manual shows a starting load of 31.5 grains W748 and a max load of 34 grains W748. I wasn't really interested in going all the way to 34, but I did a load ladder from 31.5 to 33 using WLRM primers.
I shot the Lee C309-170, made of Lyman #2. It is a gas check design, but I did one coat of Smoke's clear with no gas check.
Good news was 50 rounds fired and no leading and no degradation of accuracy over time. I never really found a good "sweet spot" for the rifle in terms of accuracy-- best 5 shot group at 50 yards was 1" and I have lube/gas checked loads that do better than that (but at lower velocity, of course). However, I did get factory level velocities (just over 2100 fps).
So--I now know the PC can do it, although I'm not sure how often I will try.