A rabbit hunter writes:
“I am looking to buy some shock collars for my rabbit dogs to keep them from running deer. I have two dogs now and am planning on adding more. ”
I recommend collars from the Tri-Tronics Classic 70 family for stopping a hunting dog from running deer, especially the Classic 70 G3 EXP. This is a one dog system that is expandable up to six dogs. You can also get it in multi dog units from 2 dog up to 6 dog.
I really do not know enough about rabbit dogs to answer the rest of your questions. You might check with these sites:
Please let me know if you have any questions. We do appreciate your business.