Buzz577:
I tossed up an opinion on chambering for the .577 a while ago, suggesting that the 2 3/4 cartridge deserved a closer look nowdays because of Woodleigh's new bullets. Not everyone agreed, of course!
Click this URL for a peek:
http://forums.nitroexpress.com/showflat.php?Cat=&Board=doubles&Number=12288&page=6&view=collapsed&sb=5&o=&fpart=1