Will the stainless pins wear out with use? Just curious as it seems it is taking longer now for the pins to clean out primer pockets than they did when new. I assume since they are also tumbling into each other and not just the brass that eventually they will become rounded on the ends. The way they seem to escape from my tumbler I will probably need to replace them before they wear out. These pins are like jumping beans and end up all over the basement and garage.