Gentlemen and lady's, this is my first post. I took my new C9 to my farm where I have a shooting range set up, I shot 72 rounds of Whinchester white box, first 2 mags with 6 rounds went smooth then I tried to load 8 rounds, first try first round went in and I shot one more then the bullet went in nose down, I pulled back a little on the slide then another round tried to go in, so I pulled slide all way back and used thumb lock and shook both rounds out. Then I unloaded magazine (I only have one that came with gun) and reloaded with 8 rounds, again first two went in and 3rd jammed nose down same as first time, after that I put 6 rounds at a time with no more problems. Sunday I did strip gun down and polished ramp, I didn't have any fine grit sand paper but I did go straight up and down and it looks good and feels very smooth,. Do you think it is magazine or ramp that is causing my problems ?