I have used cheddite primers in the past with only 1 problem shooting an 1100 in a winter league hit the carrier tab bolt started to close round went off,not a mark on the primer. thank the lord I had the gun pointed in a safe direction.I beleive that the primer had a loose anvil. like i said there was not a mark on the primer from the firing pin.Otherwise I have shot 30,000 with out a problem,
The primers go "BANG". Your gun may not like them, though, and regularly punch holes in the primer cups. You will then either become friendly with your local gunsmith or become a practiced hand at buying and replacing the firing pins you'll wreck as a result. My XTs don't like'em at all!
been using an average 3 sleaves a year for atleast 8 years. Have never had a misfire. Did punch the odd hole through one but it was specific to one gun of low quality; never punched through with my 682/DT10. Hodgson powders do give recipes for Cheddites. None for Alliant but I emailed them and got the info I needed. Challenger ammo for Canada is Cheddite components.
unknown, I have a Citori that punched through a Cheddite once, bottom barrel. It never punched through Win primers. Only fired a few Cheddites in it and assume it would be a frequent occurrence. Were you able to stop it from happening or is it a design problem? My BT has never punched through a primer.
When the primer cap is pierced, like as blackfoot and paul7177 mentioned above, the primer acts like a mini-blowtorch and destroys K-80 firing pins quickly. So Cheddite primers are not worth the money saved to K-80 guys, and you can verify this with KI.