I'm a new gun owner -- my father-in-law, a retired police captain -- gave me his old S&W .4506 stainless. Beautiful weapon and, from what I'm reading, it's incredibly durable. Last night, I took it apart to clean it for the first time. Reassembly was a bit tricky for me -- I had the slide lock forward on me. I was told that this was due to improper placement of the recoil spring. So I took people's advice, banged the rear of the slide gently against the carpet and it came off. I had the same problem a few more times but eventually, I got it back together...I think. Now, the single action and double action seem to be working as they should, BUT... 1. When the slide is locked back, the guide rod protrudes slightly farther than the barrel. I've seen pics of other firearms with open actions and found this to be the case in one or two other pics but I don't know if it's right for the .4506. Could my recoil spring placement be off...again? 2. I'm not sure if this is as much of a problem -- it was late and I can't remember how much this concerned me but the slide wants to lock every time I pull it back. This was more difficult to accomplish before because of the size of the weapon -- I had to reach around to manipulate the slide lock but now it seems to be catching too easily. So does anyone have ideas? A novice gun owner wants to know! Thanks!