It's the super ultra batshit fuggin crazy mf'er 300?
Is it a photoshopped .223 WSSM?
17-50. (Cal-case designation.)
That's got to be some funny looking chamber. And magazine too.
Aha, and barrel life?
2 or 3 shots? :)))
A .50 BMG necked down to .17! lol
That's wildcatting to the nth degree. Nobile, you're right on that one. 2-3 shots max. Manufacturer's instructions:
Fire round. Walk safe distance away and allow barrel to re-solidify.