Being we are talking about hunting the rabbits, Tomorrow I'm going to take a vacation day every Friday in Febraury to hunt the wabbits. I like to use number six shot for hunting both. I haven't had any luck using 7.5 for squirrels. I don't use my .410 bore to hunt squirrels, but use it sometimes to hunt rabbits. I use # 8 shot in 2.5" when using the 410 becuase, I hunt over beagles. My squirrel and rabbit gun is the 20 ga. Shorty. I reload so I can loaded 11/16 oz to 1 1/8 oz of shot. My Shorty has the 22" youth barrel with screw in chokes and I can tailor the load to choke to range. Well to all enjoy your small game season and hoping you jump a covey of quail while you hunting the rabbits.
Froghunter