unless you head shot your quarry with .17hmr there will be not much left . The .22lr will leave enough for a giving the rabbits to a friend for their dogs if body shot not sure if the same can be said for the .17hmr .
plus you cant get subsonic .17hmr ammo. so if your in and around the farm house area with a large amount of rabbits its going to be noisey .
i use my springer when i'm near the farm house due to safety and the .22lr in the fields . i could not get close enough to the quarry in the fields due to being very open . so the .22lr is fine for that .
.17hmr would be ideal but the noise is an issue as there is houses either side of my permission. plus i don't fancy the idea of bullets being stuck in the barrel due to squibs rounds ( the issue may still be present although i think they have solved it ).
i will stick with the .22lr and my springer .
im out 8 hours average when i go bunny hunting so lugging a dive bottle is a no no . yes i could leave it at the farm house but i dont always go to the farm house due to people working there when i am there ( my brother in law runs a landscaping business from the farm so they are dumping grass cutting and pruned tree branches all the time )