Greetings Mucko,
Congratulations on your escape. Looking at your load of AR2213SC at 61 grains I wonder if you have been the victim of old data. Hodgdon has produced some modern data for the .264 recently in psi which shows 61 grains as near max for the 129 grains and way over max for the 140 grains. Nick Harvey was giving much higher loads at least up until his 6th edition which would be excessive to dangerous based on the current Hodgdon data.
Regards Grandpamac.
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