I just purchased a CZ 75 P-07 Duty today and when I got it home, I went to load the mags and have run into a kinda big problem. The mags are listed as being able to hold 16 rnds but I'm only able to insert 15 into it. I've tried loading them with Hornady FTX, Remington JHP, and Winchester JHP, but to no avail. Is this a common problem and is there a quick fix for it? Thank you in advance for any help or advise.