Re: Any body have any loads for a 30-30 single shot
Call it 2300, maybe 2350. I wouldn't try to go much beyond that with standard 30-30 cases. 375 Win cases are rated for higher pressures if you want to do some case forming, but I don't think it'd be worth the effort or the expense.
Depending on what you're doing with it, it might be worthwhile to consider some of the lighter 125-135 grain .30 cal varmint bullets. At these speeds, they'll behave more like conventional big game bullets, expanding rather than blowing up like they would at higher velocities.