Border War (A Gatling Western #3‪)‬

Master armorer, dead shot and expert in death, Gatling tested automatic weapons from all over the world-on living bodies. Paid in gold for his bloody work, he was probably the single most dangerous man in the Old West. For at his command was more firepower than a cavalry regiment and more deadly force than the Grim Reaper. He would need every ounce of skill to take on....
THE MISSION
His baggage was heavy-.37 millimeter Revolving Cannons that spat out death of biblical proportions-and a feeling of guilt that he'd have to use it on a half-trained Canadian militia. But he’d sold his soul to the Colonel for a box of gold and he couldn't turn back. His task was to bring an arsenal of automatic weapons to the métis people, mixed bloods who were planning a full-scale war against the Canadian government. Backed by Irish revolutionaries and the crackpot Annex Canada Committee, Gatling was out to create an international incident that could explode into a World war.