I've had a lot of misfires, light strikes w/ Cheddite shotgun primers . Older guns (all pre WW2), all different types, gauges & makes. A second strike on the pre-enjoyed shell will set 'er off.
Win & Fed 209 no ignition problems. The Winchester209 seem soft and will drag if the (SxS) action is out of time a bit and the hammers don't lift immediately with the opening of the bbl.
Not really the fault of the primers,,but the problem can be 'fixed' for the short term by finding a primer with a harder material so the FP doesn't bury itself into it.
Cheddites'd probably fix you up,,but the gun might not go bang all the time either.
When they're bad,,it's 5+ 'clicks' out of 50 rounds. That's annoying.
Just my experience...
