Board Thread:Questions and answers/@comment-26431461-20161001014150/@comment-27306930-20161002032649

Wait a stinkin' minnit ! You guys haven't taken into consideration the coefficient of friction between brass and CPVC, or any other material for that matter. Your arguments are invalid on their face.

Brass has a coefficient of friction of .28 while CPVC has a coefficient of friction of .20. And Nerfite (aka Acrylonitrile Butadiene Styrene, aka ABS) has a coefficient of friction of .08.

Considering the mass of Nerf darts is next to zero, and the velocity is practically negligible, Regular old Nerf blasters and CPVC mods are 30+% better than brass at transferring the energy of the spring/plunger to the dart itself.

Plus, you forgot to accommodate for the fact that Nerf barrels are tapered, and brass barrels are straight. The coefficient of friction exponentially decreases in Nerf blasters, while it's constant in brass barreled blasters.

So unless you've increased your spring 30+%,  your brass barreled blaster isn't as good as my equivalently modded Nerf blaster. Just sayin'

(Ugh. Physics newbies)