I also Have a Hornet on a SB-2 Handi. I love it, fun to shoot , very accurate if I do my part.
I first tried the old loads of 2400, and H110, Those loads were OK, but now I find the loadings of H-Lil Gun and RL-7 really shoot good. RL -7 is a little slow, but boy the holes are right on top one another ! I use the Hornady V-Max bullets, Remington Nickle plated brass....Works great for me ! Good luck with yours ..... "PJ"