Implications
My first thought is about the effectiveness of it. Both the rifled musket and the machine gun were comparable and similar improvements. They both changed warfare greatly. The battlefield could become far more deadly and I cannot see body armor working against the rounds this is made for. This also has some other obvious applications. ... Yah, real obvious. It is part of a bigger change. This might seem like a nice gun or effective weapon, but it is also part of a bigger class of change. ... Dang, one more thing for me to figure out how to deal with.