At .30-30 velocities, it's hard to beat the old standards. The Hornady 170 grain or the Remington Core-Lokt 170. Both are designed to work at .30-30 velocities and the bullet manufacturers have long experience with those bullets. I'd hesitate to calculate the number of deer that have been killed with a 170 grain bullet traveling ~ 2000 fps.
Both of those bullets are safe for tubular magazines, as is any bullet recommended for the .30-30. There are numerous 170 and 150 bullets made by Hornady, Remington, Speer, Sierra, Winchester, that are safe for tubular magazines. One of my favorites is the 130 grain Speer flat point. It's designed for .30-30 velocities and is very accurate in my Handi.
The .30-30 is one of my favorite cartridges. It's a great round that is often overlooked by shooters who want something more whiz-bang.