Herco is a heavy smokeless shotshell with a pistol. The heavy-duty shotshell loads of powder were proven to be 10, 12, 16, 20 and 28 gage target loads since 1920. Herco is the finishing powder in 12 gauges and loads 1 1/4 oz uplond. Excellent for handguns and magnums. The shape of the grain is fleeting.
The quality of Alliant Herco Shotshell Powder is difficult to beat in a heavy, high-base shotshell hunting load. This powder provides unbelievable performance at heavy loads, including 10, 12, 16, 20 and 28. The powder is also used for 12-gage loads, 1 ounce loads, magnum loads of guns.
The manufacturing company reminds us that the loads shown in the manual must never be exceeded, and no matter the source, type, or brand, two powders should never be blended at all. Furthermore, there is no ally.