JP Enterprises Silent Capture Spring

[cory]

I'm always sceptical of those huge numbers of rounds. There is no way they shot 500,000 rounds to test them, because the cost of doing so outweighs possible profits so much.

Better yes, 490,000 rounds better? Doubt it.

I agree it's doubtful they've tested to that number, but not many companies test to the number they advertise. It's more of a design to. We have so much knowledge and experience with materials that it's not difficult to effectively design to a specific life span.

The fact that it wasn't tested to that number normally means a higher margin of safety. I would suspect with a number like 500,000 it was actually designed to infinite life. Will it really hold up that long? With no imperfections in the material or in the manufacturing process, probably.