I came across some of this Federal .40S&W 155gr HST contract ammo for the U.S. Coast Guard recently. Boxes of it for sale at Targetsports. I can not find much talk before on these Mk308 mod-0 rds, and only one thread from Tony WIlliams from back in 2011 when they were newer stuff. I have seen factory overrun 155gr HST loads like this from Federal in generic boxes though. The NSN for this ammo is 1305-01-548-6279 and dates back to February 2007 as far as I can tell.