The Warp 7 is based on an improved 300 Win. First form the neck and then fire form--less body taper and a 35 degree shoulder. I did not name it Speedy did---the old Star Trek was one of his favorites!! It was designed to be a LR BR cartridge but the reamer had never been used so I tried it out. Shoots .3 and sometimes .2 out of that sporter configuration. The tube is a Krieger, action is Kodiak, Jewell Trigger, McMillan Stock, Speedy Rings, HS Precision Bottom Metal and Mag (I bead blasted it to match the rest of the rifle), Speedy Brake and a USO Scope.