The Power Racing Series (hopped up Power Wheels racing) has alluded to requiring Nerf weapons this year for a section of the competition. We’ve been doing some proper R&D, using the Navy’s cruise missile destroying gun as a goal:
Some outside contracting has yielded stunning results on the high speed camera, with a custom LEGO weapon utilizing a NERF dart spring loaded clip rattling off a dart every 1/100th of a second: