I have owned a SBE for 12 years and 12 ga cordoba for 6 mos. Just acquired a m2 in 20 gauge and have problems loading shells in the magazine tube. Its like the shells are too big and only go in 3/4 of the way. After puling shell out, I can cycle the bolt and insert any shell without problem. I'm using different shells in both standard and high brass form. Am I looking at probelms down the road. This is the first negative experience w/ a benelli i have encountered.. Anybody suffered the same problem?