Back when lead was legal for migratory game I used one shot size #4. It seemed to work for everything from rabbits, grouse and ducks. I still use #4 and sometimes #4 as I prefer those for rabbits and they work quite well on grouse. If I aim just above the head I usually get no more then 1 pellet in the breast if any. 4,6,7 + I find you just end up with lot's of pellets in the flesh for both rabbits or grouse.





















































