It's a low chance as I have many addons right know but the mod might might be conflicting with either ''Dynamic Blood Placement'' or ''Universal Blood Trailing'' mods as when I shoot someone,even with a revolver,10 bullet holes appear behind the character that are unusually big.

Good stuff on the blood mod by the way,the stains look nice.

If you are getting any white outlines, please disable any blood placement addons that effect the way blood spawns and also disable any mods that increase weapon damage (For example insta-kill headshots mod)