A fine 505 Gibbs can be built reasonably economically on a M30 Remintong action. Buy a P-14 bolt and a Wisner 505 Gibbs mag box/ triggerguard and send it to Dennis Olsen. He will modify the bolt and action to feed 505 Gibbs rounds for about $125. Buy a pac-Nor barrel and a good barrel mounted recoil lug and any decent gunsmith with a 505 reamer can put it together for you. Given that you'll need a decent stock, the whole thing could be put together for well under $2000. I would not waste my time on a Ruger for this cartridge. I saw a similar gun to what I described on sale at the last Vegas gunshow for $5K. -Rob