The Rugerr Mark III will eat just about anything. I use Federal 40 grain LRN. They come 500 to a box,
packaged 50 to 10 smaller boxes. I get them at Wal-Mart. Wally's also carries Federal and Remington
in bulk, 550 to a box. All of them are in the $10.00 - $11.00 price range. The bulk stuff comes in hollow
point, but I use the lead round nose and clean the gun after each use.
I've had a few FTF's in 500 rounds or so, but from what I have experienced, that's to be expected now
and then from the little rim fire cartridge.
Just my .02