Hodgdon Lil'Gun is a high-tech propellant designed specifically for the 410 BORE. Due to flaws in powder fit, metering, and burning characteristics, the 410 shotshell has long been difficult to load. That is no longer the case! LIL'GUN was created to perfectly fit, meter, and perform in the 410 BORE. There will be no more spilt shot or bulging cases. In addition, LIL'GUN is excellent in the 22 Hornet and has several magnum pistol uses.