No, I haven't had a similar experience and hopefully never will! That load is almost 10% over the maximum load listed for the same bullet in the Speer manual. If I remember correctly from working with the Powley Computer years ago that would translate into roughly a 20% increase in pressure with IMR series powders. Regardless of the absence of pressure signs and good accuracy that load is clearly not safe. I won't even get into what I think of shooting somebody else's handloads.
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