Along the lines of Jerry's thoughts, I have a BSS 12g that I've had about 25 yrs and fired about 15,000 rounds thru before it needed the sears restoned. No other malfunctions.

I also have approx 6000 rounds thru a 20g Browning B525 in the last 3 yrs with no malfunctions.

And specifically to what Jerry mentioned about "hardware store guns" this little .410 is a 1926 Nitro Special that cost about $15 new and available at many hardware stores. Of course, this one has been customized extensively. It has consumed about 15 flats (3750) in the few yrs that I've had it.