Hey

I have been blazing through 50 or so rounds of buckshot every week through my old 870 police trade in. It's cheap "spectra shot" buckshot that I got dirt cheap. Anyway, today, I was blasting and the trigger didn't work. I felt for the safety and it wouldn't go back on. I racked the shell out and loaded a new. No change, Then I racked it a few more times and then the trigger worked again. I ignored it, and kept going. Then about 20 rounds later same problem. Any clues?