I have a 642-1 I am attempting to learn. It has the Apex spring kit installed.
During dry fire it is great. I find that when shooting 50 rounds ammo, that by the end of the box, when I pull the trigger, the cylinder turns and the trigger gets to the break point, but feels like it just locks up and runs into a wall. If I unload the gun, the trigger feels the same. Very tight grip will make it spin, but it is heavy enough I am worried about breaking something, the trigger must go up to 40-50lbs.
I suspect it is heat related because it will resolve itself by the time I get home from the range.
Is this normal behavior?
In addition, I noticed the last target I shot that the holes started out nice and round, but by the end they were getting oval and shredded which I assume is key holing, but again, it only seems to happen as the gun heats up. I have no experience with S&W revolvers and in my limited Ruger LCR experience they just run and run without drama. I understand that a revolver basically only needs to get through a cylinder or two reliably, but is it unrealistic to expect it to go through 50 rounds of rapid fire?
Thanks, target below along with comparisons from LCR, LCP and LCR .22.