Okay, I found some 100gr 1/2 jacketed RN bullets from Hornady on Midway for $8.50 per 100.
I also found some 110gr hollowpoint Sierra Varminters.
I also got some 150gr FP from Berry's Bullets.
Accurate Powder Co. shows loads for .30-30 using A2015 powder under a 100gr sierra plinker (similar to the hornady RN's) @ 2530-2880fps.
They also show some 110gr bullets at 2500-2700fps.
We'll see how accuracy stacks up with these bullets. I had a feeling it was possible to safely load the .30-30 to 2500+fps with lighter bullets, though.
They even had data for a 55gr sabot round to hit nearly 3400fps!