I reload. I once bought a large quantity of West Coast 9mm plated bullets. I don't remember exactly, but it was probably 10,000. I had successfully shot several thousand and reordered this batch. They would keyhole. Just a few out of each hundred.
Once, at a match, I shot at a target and hit a non threat 3 feet away.
It took forever to shoot up all those bullets in practice. I switched to FMJ for matches and then to coated when they came out. No more plated bullets for me.
West Coast Bullets went out of business about that time. The company was sold and renamed.
Guess what??