Congrtulations on your new purchase. Did tou buy this gun as a shooter or did you have some storage area at home that needed filled? Thats a great model you picked up for all around use. My first Colt was a 5 1/2" 45 Colt 27 years ago. In this last month I purchased 2 Colt SAA's both have the screw from the front holding the base pin in rather than the cross pin method. Both are in 45 Colt, one is a 4 5/8" and the other is a 3" ejectorless Sheriff's model.The "44-40" or shall I say what Colt cant say "44WCF" is a great cartridge but incase your interested you can also have a 44 Special cylinder fit to your gun by Colt for not to bad a price. I cant say enough good things about the new breed of 3rd Gen. guns mine are great.