So my wife and I went to the range for our first time last weekend with our new gun, the S&W sigma 9mm. We had a blast, but as to be expected our accuracy left something to be desired. My groups were about 6" but I was shooting about 6" lower then I was aiming at 25'. My wife was grouping closer to 8-10" and shooting slightly lower and to the right then I was. I understand that with time and practice we will get better, but I have been thinking about this all week and am wondering if the heavy trigger pull on the sigma could be causing us to pull the barrel down while we are firing. If this is a likely cause, does anyone have suggestions on how to correct our mistakes? My wife is against altering the gun by having the trigger pull lightened, and it's basically her gun because she likes it so much and It gives me a reason to get a nicer .40 cal for myself down the road. It was easy enough to aim higher to shoot where we wanted, but I would much rather shoot where I intend to shoot. It would also be nice if someone knew of a good website that had info on shooting techniques and pointers. I find that I love reading up on stuff like that! Thanks!