good things

New guy here. I am thinking about a Saiga-12, 22" for home protection and hunting. I've heard good things about them, especially reliability, which is very high on my desirability meter. I'have heard though that if the shells are loaded into the well and left there for a day or so, then the shell will crimp on the end and not load into the barrel/cahmber. Also the shells will crimp if just left in the magazine??? ISITSO??? Has anyone had this problem? If so, any solution? Thanx