The whole expanding slugs? At airgun speeds, on thin bone starlings or, small pest birds, is

. Why not simply schawk them with pellets? Heck you are still drilling a .177 hole through the vitals of a starling. They really are small, fragile critters. Heck, sending .22 CPHPs at 725 FPS for me? Simply devastating on starling and sparrows out to 50+ yards. Upping it to JSB Exact Jumbo 18s at 30+ FPE? Kills on pigeons out to 104 yards, consistently. Good conditions apply of course, am not testilfying to shooting in gale force winds… For certain critters, good pellets simply get it done… Looking for consistent expansion on thin skinned critters at airgun velocities, particularly the .177 seems like… A solution in search of a problem…