I tested flechette rounds, 12 ga, thru a cylinder bore riot shotgun at 50 ft.
The darts did not stabilize and only one out of every 10 with hit the target tip first about one or two from each shotshell would actually stick in a sheet of quarter inch plywood, rather than bouncing off.
Against kevlar soft body armor, Again nearly all darts hit the target sideways, backwards, or at extreme angles that prevented penetration. But 2 darts out of one whole shotshell payload did hit point-first. One did not penetrate the vest, and one did penetrate, with its tip sticking out maybe a quarter inch on the other side.
This is the common result with the flechette rounds currently on the market. Phoenix Rising has a revamped round in the final round of testing and production.
The flechettes are larger, balanced, and actually fly straight. Given the increased size I believe there are less darts (approx.14 total per 12 gauge round). Initial testing at 40 yards, they held within a 16 inch group and every single one flew straight. If you would like to be one of the first in line, send a message to phoenixrisingdirect@gmail.com

