Cheapo,
The G30 is .45acp. I have also shot the G27, G21, and G32. The G27 is a sub-compact .40 S&W cal (3.5 inch barrel) and I borrowed it at my range and ran 100 rds. through it and was suprised at how well it shot. The max range at this particular range is ~33 feet and I had very little problem keeping all rounds in roughly 3 inch group off hand.
As far as KB's I take Rob's position, shoot jacket bullets as factory recommends and keep it clean. Some very experience shooters can shoot and reload lead and be very safe in the more tempermental calibers and barrel types. I only reload and shoot lead in .45 due to it's more forgiving properties. I know the physics of what happens and causes lead related KB's and it can happen in any gun under right circumstance.
Tom B,
I appreciate the info. I have been sort of resistant to new technology in firearms such as the "plastic/tupperware" Glocks, poly rifiling and trick bullets. I've always been very conservative in firearm choices...Colts, Sigs, Berretas and S&W for pistols. It took me sometime to become interested in the Glocks but it has been good experience thus far. I'm sure I'll be requesting advice in the future.
Hiker