Hello everyone. Finally got to shoot my new in the box Ruger GP100 with the 4" barrel today. Our weather lately has been around 0 degrees at night and around 15 during the day time making it a little too cold to shoot it since its purchase around two weeks ago. Today it was a nice 45 degrees so I decided to bust a few caps through it. I started off with .38spl 158g lrn loads at my usual 30yds to get the feel of the gun and do coarse sight alignment. It started off shooting about 4" high and 4" to the right which I quickly fixed with a few clicks to the left and down. I actually went a few too many down and had it shooting about 2" low with the 38's. Now onto my favorite load, the Federal 125g .357 magnum. The first couple of those went about an inch low so I gave it a few clicks back up and presto, the next two went dead center and were about 3/4 on an inch from each other. I fired the last two which opened to the group up some to about 2". All shooting was done from a Hoppes pistol rest. As usual from a revolver there were no malfunctions of any kind from the GP100 although I only fired approx 12 38spl and 12 .357 mags from it. To me that's one of the beauties of the revolver. No break in period required. 
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