If you follow published Data and don't substitute componant's and use a Chronograph-That won't happen.There is a margin of error built into every load.
Just my opinion.Jayco.
If you are running at 40K psi with H4198, it takes very little to hit 50K psi. Given the non-linearity between pressure and velocity, you'll never catch this with your chronograph.
That is why I chastize folks for pushing their levergun this hard.
