I've found that it is what it is; an unhappy marriage between gun, primer and other load components. Don't be too quick too condemn the primer. Meaning a change in powder/charge may result in that primer working just fine in that gun. Or that load may work just fine as is in another gun. I've seen instances where a demonstrably milder load makes a gun nearly impossible to open.

Sometimes you just have to be content that a primer swirch makes the problem disappear.