Looks like same type of damage to almost every gun pictured. Id say it is more likely an ammo problem than a gun problem. Maybe people who don't know how to reload properly shouldn't do it.
I had the same issue. A Supertuck holster from Crossbread would be great but spending the $100 for it was just a little out of my pricerange. So for my Glock 23 I decided to try it myself. Spent $35 on material and made my own. I have enough left over that I can make about 10 more also for...