Yes I've seen them myself. Commonplace when you live in the countryside as you know yourself. But I wasn't away that there was anything to eat in the farm yard? The like to get into the grass in the fields. I would have thought if Bamber went out with a loaded gun that evening he wouldn't have just half heartedly looked around and then given up. Especially as he had spent all that time loading up the gun. Also how many times have you actually "heard" rabbits? Farmers "look" for them. Rats I can understand, you get them in and around farmyards all the time. How did Jeremy think he heard rabbits in particular? It may even have been a fox? If it was then surely a shotgun would have been a far more appropriate weapon to take out?
Sometimes he said he saw rabbits other times he claimed he heard rabbits. That discrepancy alone is suspicious. Why would you ever claim to have heard them you would always says you saw them if that were what happened.
Nevill was known to use a .410 shotgun on rabbits, Jeremy wan't known to shoot animals at all. I don't think he cared about the farm enough to kill vermin in order to protect it. The only thing I think he would protect is his pot plants. So that is yet another problem I have with the story. The staged bullets are perhaps the biggest problem though. The crafyt Jeremy never managed to think up a lie for that one, not even to this day!
There are only 2 possiiblities to that one:
1) Jeremy lied, used a different ammunition source and then staged the 30 bullets after the murders
2) The killer used 20 rounds from that batch thus 30 remained and used 5 rounds from another ammunition source.
I can't see Sheila going to the closet and getting 5 extra bullets either before or during the course of the murders, it doesn't make any sense. So option 1 looks to be the truth. If he staged the bullets after the murders he had ot be the killer. If he staged them at all why should we believe the tale about the rabbits since this in part and parcel of it?
It is like dominoes when one falls you have a problem.