I recently came across a Glock in .40 S&W. I keep hearing about the unsupported chambers in the Glocks and have been kid of nervous about reloading this round. Can I purchase a new barrel that is fully supported so I can lessen the chance of a KB with the .40? If so, which brand is best? Which powders are good for this round? Power Pistol? Longshot? Which bullet weights, I'm not going to be hot rodding or anything with this round.