Hodgdon H4198 Smokeless Powder 1 Lb by HODGDON and IMR & WINCHESTERH4198 This Extreme Extruded propellant has gone through some changes since its inception and all the time maintaining the same important burning speed of the past. The kernels were shortened for improved metering and necessary elements were added to make it extremely insensitive to hot/cold temperatures. H4198 is outstanding in cartridges like the 222 Remington and 444 Marlin and the 7.62 X 39. Grain shape is extruded (stick)
