Hodgdon H380
When Bruce “B.E.” Hodgdon first used it, this spherical rifle propellant had no name. His 22-caliber wildcat, now known as the 22-250, produced one-hole groups with a 38.0-grain charge behind a 52-grain bullet, inspiring him to name the powder H380. H380 also gives outstanding results when fired from fine varmint cartridges such as the 220 Swift, 243, and 257 Roberts.