I realize some pistol manufacturers state that +P is OK for periodic use. However, with such a hot load, will +P+ cause permanent damage if I send a few down range in a Glock or Springfield? I would want to ensure my pistols would handle a few rounds at a time. I recently purchased several boxes at a price I could not pass up. I certainly wouldn't target shoot with this ammo, but for HD or CCW, this seems like a good choice. I've seen several reviews on this ammo and it has great stopping power for a 9mm.