1,000 rounds is not much at all. Pretty sure I shot that many practicing with my 638 the first year I had it
Not if the rounds used are at pressures less than, or equal, to the design pressures of the firearm.
I remember the call in show, Car Talk on NPR. Click and Clack had a military caller from Iraq who wanted to know if there was a special grease that would extend the lifetime of ball joints. Turns out they were replacing the ball joints of HMMWV's every couple of weeks. A bit more probbing by the Tappit brothers found the weight on the HMMWV's was several tons (if not more) over gross! The Army had never intended the HMMWV to be an Armored vehicle, and yet that is what the Army was doing to give the crew a chance of survival in the shooting gallery called Iraqi.
Ball joints ought to last 200,000 miles if well greased and if the vehicle is not heavily loaded. They will go in 100,000 miles if not constantly greased and if a lot of weight is on the wheels.
If a pistol is not rated for +P loads, a 1000 rounds would be an over load, and you would expect the pistol to be beat out of time, and the cylinders to stretch past yield.
And, I am going to claim, stay away from pressure maximums. Smith and Wesson wants to sell you firearms, so they will not challenge your fantasies, or tell you that your desires have no basis in physical reality. And this is because, delusional people don't want to hear it, and then they will buy the Tropical Jack Gun Company pistol, guaranteed to function with mini nukes. Except the Tropical Jack company is an LLC, and will go away when too many lawsuits are pressed. Smith and Wesson knows, the people who want Buffalo stomping loads will probably only fire 50 rounds, and then the pistol will be put up. People who fired tens of thousands of rounds figure out, pressure is not their friend, because they start to experience, or see, fatigue failures.