Quote Originally Posted by harricook View Post
But did you notice the bulging before you decapped them ?

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No, but I wasn't looking - only after I decapped them. After I spotted it, I did look at the remaining rounds before decapping & didn't see any more that looked wrong.

Quote Originally Posted by enfield2band View Post
Something simple like a slightly oversize bullet or a tight crimp can cause the pressures to go up. Mixing cases can have the same effect because the internal volumes vary due to the thickness of the brass.
All the same cases, perhaps I'll go for a lighter crimp as well as stepping the load down.

Cheers guys.