The bore size of the paint is .689 which is ideal for Tippmann Flatline barrels and other high end barrel systems. As you are probably already aware, use the cheap stuff and you end up with burst balls and a flight trajectory the shape of a banana. Probably the most impressive aspect of this paint is the attention. Designed for the scenario player, the shell is actually camouflaged. The other team will not even see these paintballs coming. The shells are available in either jungle camouflage or desert camouflage patterns with a thick orange fill.