One thing to check when a revolver hangs up after 10 or so shots is the barrel/cylinder gap. If it is too tight, when the cylinder expands lengthwise from heat, it won't turn. That will not normally cause the trigger to hang up, but it could. If you just let the gun cool after it hangs up, will it go back to normal by itself?
(That problem can drive folks nuts, because the trouble is self-correcting; by the time a gunsmith looks at the problem, there is no problem.)