I was concerned about velocity, as well. After I looked up 30-30 info in my Lymans manual, I decided not to use them. The velocities are half of a 30-06!
It would really ruin my day to have to jackhammer a 30-30 lump of lead from the barrel of my '06. Especially since I just had shoulder surgery a few days ago. I may not be able to do it with one hand....
Thanks, guys...