Brilliant as always. If you're shooting roe at 100 they can cause a little damage but beyond 300 is where they work really well. If I remember correctly I've got them going at a moderate 3100fps there or thereabouts. They poleaxe anything they hit. When sending them through my creedmoor at 2800 it was the same story. Reds out to 300+ were knocked straight down and minimal damage on smaller deer (muntjac+ roe) past 150