Wow, what an incredible project! Everything from making the brass to a beautiful old donor shotgun to the first class gunsmithing.
Please excuse my ignorance, but I thought no caliber above 0.5 was allowed by civilians?
What an awesome rifle. You are a brave man, that amount of recoil is just too much for me. I would be afraid of detaching my retinas shooting something like that!
There is an exception for sporting rounds, hence the 570 NE, 577 T-rex, 585 Nyati, 600 NE, 600 overkill, 700 NE and there might be a few more wildcats I'm forgetting. Also if there wasn't an exception shotgun slugs would be illegal.
