I sort of know the answer but I want some opinions thrown in as well please. I'm just plinking in the garden at the moment. Some pellets are clover leaf, some give a quite open group. As i'm just plinking for fun my mind isn't 100% on the job even If I tell myself it is. Hopeing to go to the various target clubs local to me when funds allow it. I've found out the target size I need to practice for. Now It's down to choice of pellets & practice. My question, say I end up after testing with 3 good pellet types, one clover leaf size, one is 12mm & the other is 25mm groups, for the question traj' is very close between the 3. Is the 25mm group pellet acceptable ? I'm not going to throw in the cost of the pellets but that is lurking around in a dark corner. In other words, if the target zone is 40mm & the pellet group is 25mm why should would I prefer the clover leaf group pellet ?