ALS,
Your right on the mark about glass. I've seen .38 Special and 9mm defeated by glass. Also seen .45 ACP fail to penetrate a Semi Tractor driver's side door. All of these instances were a fairly close range, within 20 feet or closer. All were +p rounds and hollow points.
After seeing this and others I decided to stay with a revolver in .357 Magnum. Seen far too many semi auto pistols feed jam and stove pipe for me to count.
Your right on the mark about glass. I've seen .38 Special and 9mm defeated by glass. Also seen .45 ACP fail to penetrate a Semi Tractor driver's side door. All of these instances were a fairly close range, within 20 feet or closer. All were +p rounds and hollow points.
After seeing this and others I decided to stay with a revolver in .357 Magnum. Seen far too many semi auto pistols feed jam and stove pipe for me to count.