I was thinking of a single shot rifle, then got to thinking I read somewhere you could rebarel a SA rifle to la and just single load it. The kicker being having to pull the bolt to unload a live round But with the myriad of rem 700 barrels on gunbroker for $50( way cheaper than a hr) Is this thinking correct, could my 243 be a pita 30-06 ? I realize it will only be cheap if it head spaces correctly , which do to modern manufacturing I think it would be likely.