Took my new SR1911, my first 1911 out to the range this weekend and had a few issues with it. When I first got it I striped it cleaned it up oiled and reassembled it. Took it to the range and on the first 3 mags I put through it the slide would get stuck back when attempting to chamber the next round (really stuck, took a considerable amount of force to free it). This happened once on each of the first 3 mags and it seemed to loosen up and performed flawlessly thereafter, put about 75 rounds through it.
So my question is, what did I screw up? I assume perhaps I did not oil it enough, being my first 1911 I am not sure. Any ideas?