This happened this spring, some friends and I we're out shooting a variety of guns we all brought-we had a table out in the field. My girlfriend was shooting at clays that a buddy was throwing in the air with my Winchester 1300, 12 ga. I loaded up my other friends' Smith & Wesson M&P .45 ACP and chambered a round, about that time my girlfriend fired at another clay my friend had thrown but missed-the clay began to fall toward the ground and just being silly I raised the .45 and pointed in the general direction of the falling clay about 35-40 yards away and squeezed a single round off, the clay exploded about 6 ft from the ground and everyone got quiet-I was just as surprised as they were.