When the late Bruce Hodgdon first employed H380TM, it was an unnamed spherical rifle propellant. When a charge of 38.0 grains behind a 52 grain bullet gave one hole group of its wildcat of 22 caliber (now called the 22-250), the powder H380 was properly termed. The 220 Swift, 243, 257 Roberts, and other fine-varmint cartridges are also great performers in the H380. A hollow ball is the grain form.
This was an unnamed spherical rifle propellant when the late Bruce Hodgdon first used it. When a 38.0 grain charge behind a 52 grain bullet gave one hole groups from his 22 caliber wildcat (now called the 22-250), he appropriately named the powder H380. H380 is also a superb performer in the 220 Swift, 243, 257 Roberts and other fine varmint cartridges
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