I'm fairly new to pistol shooting and have a question about ammo. Although I had some early failures with my .380 Glock 42, I thought the failures had been eliminated until yesterday. The Glock 42 has about 300 rds. through it. I have been shooting Federal FMJ and HP but purchased some Winchester 95 gr. FMJ Target Ammo and had several failures. I had a few failure to fire, and one stove pipe. I looked at one of the failures and the primer had a mark where the firing pin struck it but it failed to fire. I think I had about 4 or 5 failures out of 72 rds. fired. I have 2 other Glock's both 9mm and have never had any failures. So I'm trying to decide if I need to have Glock take a look at it. So my question is "are some failures normal with the cheaper target ammo"?