Okay, so I went to the range today with my recently acquired 28-3. I brought several .357 loads with me. I had some loads using Blue Dot, AA#5 and Titegroup. I used Sierra 158gr. JHC, Hornady 158gr. LSWC HP (THE BOMB FOR SURE!!!), and Hornady 158gr. HP XTP. All of my loads were accurate, but I found the Blue Dot loads to be more accurate with a very nice POW!! to them. Here is the issue: It seems that the gun is locking up on the 3rd round and then possibly the 6th round. I get to the 3rd round and the hammer just will not come back, and I can't even manually pull it back for SA?! If there are no rounds in the cylinder I can dry fire it repeatedly with no problems. My friend bought some factory .38Spl loads and the exact same thing happened to him. So.....I am taking it back on Monday and having it sent back to S&W to see what the problem is because I really like how this thing shoots. The thing that sucks is that when I was able to shoot it the accuracy was amazing and even my hottest load did not seem to bother the N-frame at all! Any suggestions as to what the problem could be?