Vintage Bridger Line Throwing Solid Brass Rod Projectiles 45 Caliber Lot of 3

This is a lot of 3 different solid brass rod projectiles for use in .45 caliber line throwing guns.  They measure 13 inches in length and each have different weights.  One is marked “Naval Co. Inc. / Doylestown, PA” made for the Bridger Line Throwing Gun with the other two unmarked.