Hi all. New to the forum. Semi new to the airgun world. I have an RWS Diana 48/52 .22 cal. I'm looking for a hard pellet or one of a particular shape that won't mushroom too much or fragment on impact. I'm shooting pigeons and starlings. I use the kills to feed my hawks and falcons (I train birds of prey for a living). I don't want the raptors ingesting lead so I need a pellet that will give me a clean pass thru shot leaving no lead fragments or residue in the kill. I saw some dome shaped ones that looked like they had a copper BB pushed down into the top of each pellet. I was wondering about those. Any and all opinions are welcome and appreciated. Thanks everybody.