A handi has less give in the action than a traditional lever 30-30. This means less stretching on the case. I don't have the Handi in 30-30, but have a Savage 24 in 30-30 over 20, and a 94. The cases seem to stretch more in the 94. Since there are two guns, I full length size, and use a Lee factory crimp. Working the brass makes it brittle, hence the split necks eventually. Be careful if you anneal, you can weaken the case if done wrong. I do have to trim length more with this than other calibers. I favor 170 gr. for the lever, and a mix in the Savage, 130 SSSP, 125 flat point (not my favorite), and 150 gr. spires. I have found that I find one bullet I like and stick with it in any caliber, most often leaning to heavy. Also tried some of the .22 sabot rounds, haven't found a need for them in my shooting.