Here are the videos. That's one rifle I have absolutely no desire to shoot - to hold and admire, yes - to shoot, not on your life. Even a 4 bore is to much for this old broken guy. 30 rounds from my .375 last Saturday was enough - but a LOT easier than 1 round from Big Dog's hand-held cannon. About 40 pounds of recoil compared to 300+ - OUCH!