New research is indicating that while this has been popularly repeated for decades, this is simply a myth passed down that started as anywhere from telephone effect in storytelling, hearsay in oral history all the way to propaganda for the "big bore" faction of handgun requisition for the army, as a mandate for army requisition being restricted to handguns of .45 caliber or larger only had gone into effect in peacetime- years before the Spanish American War, and consequential American involvement in the Moro Insurrection, could have been a factor. Regardless, it is known from contemporary accounts that the .45 and the 00 buckshot shotgun shell were things the soldiers considered essential to the confidence that they could stop a charging, determined Moro. It is also from the impact of the Juramentado that Gen. John J. Pershing acquired his respect for the shotgun as a military implement, which Americans would be the only force to carry in numbers into the First World War.