I have a model 19-3 Smith & Wesson 357 and today I went to the range and was going to shoot some Remington 125 gr 357s. I managed to get about 39 rounds shot out of my planned 100, the thing became very hard to shoot and the cylinder progressively became tougher to rotate as I shot more. I finally stopped but the trigger was locking and the cylinder was very hard to open unlike it was when I started today shooting. The RSO there said to go inside the gun and really clean it out. Would 39 rounds of this ammo cause this? The bullets had no trouble going in the cylinder or ejecting, did have trouble on Tuesday with some blazer 158gr sticking inside. Any help? Thanks, James