There was quite an overlap between the use of bows and guns. Bows were reliable, accurate, quiet, would work in the rain and reloaded quickly. Guns took a lon

There was quite an overlap between the use of bows and guns. Bows were reliable, accurate, quiet, would work in the rain and reloaded quickly. Guns took a long time to exceed them. I think there is still quite a bit of time left for internal combustion engines. Long distance is a big one, as is racing. Fuel is lightweight and can still be added quickly.