First run with TSS... - 09/28/17
Big thanks to Pullit and Reloader7RM for all the help. 1 5/8oz of #9 TSS 19g/cc put 319 pellets inside a 10" circle and 257 inside the 20" circle at a lasered 40yds. 20ga Rem 870 youth with a factory Super Full choke, Burris FastFire III red dot. The shot blew through the 1/2" OSB target board to boot.