I did notice his hand pain, however, he kept on shooting.
I've shown this conversion before: 26.5mm flare to 12 gauge shotgun shell with sleeve converter. The power, kick-back, shooting this monster is a once a week ordeal. Your hand hurts so bad for a week, you can hardly use it. I fired it twice in one day and the second time was equal to getting a tooth pulled without xylocaine or anesthetic.
This shell is LOW velocity bird shot. I would NEVER fire a high velocity round like 00 Buckshot.
I've shot .50 cal. pistols and .44 magnum pistols. They don't have 25% of the kick this gun (pictured) does.
I loved the fact two slugs came out at one time. If someone got up after being hit with that, I'd throw the gun at him and run!
Wow! That's some real bang! At first glance, I thought it was possible to shoot the barrels individually. Then the video shows both hammers working together with two bullets leaving at the same time. Talk about some knock-down power...