
I can't remember the company but there is some joint that does sabot's which let you shoot .223 rounds in your .308 to get heaps more velocity out of them with that extra powder from the bigger brass.
The sabots are plastic though. How many shots do you reckon you could get out of these in a row before you're just melting plastic down your barrel?
Not really interesting in trying them, just chatting with a mate and wondering.