need opinion about design

[darktiste]

Well from my own reasearch there was nothing that could shot bullet quickly around that time so what was the common practice was to put a serie of barrel from which bullet could be fired improving the firing rate.I am not a mechanical guy so i am not really knowledgable when it come to inventing mechanism that look real.I admire your ambition to move toward functionality but it i have the impression you would need more research so i would suggest you instead focus on clarity and good design decision instead .I don't know what time frame is left so it to your advantage to decide if more study are necessary or if you should spend your energy problem solving the old design.