What’s the longest you have dry aged a ribeye for?

[Anonymous]

Just did a prime from Costco and it ended up being around 70 days. Turned out fantastic and not too gamey like the strip loin I did for 60. Personally I think 50-70 is perfect for a large/thick ribeye, and 35-45 for a strip loin. Not sure if the extra fat & marbling with the prime allows it to age longer, but it might.