The bullet used in 60 grain TAP ammunition is the 60 grain V-MAX, so as mentioned by JStor use the load data for a 60 grain V-MAX. There’s plenty of it in the Hornady reloading manual and the Lyman manual. Factory 60 grain TAP ammunition had a muzzle velocity of 2927 fps from a 20” Colt barrel and 2790 fps from a 16” Colt barrel.
The 60 grain V-MAX is capable of some fine accuracy from an AR-15 even with minimal load development. The sub-MOA 10-shot group pictured below was fired from an AR-15 at 100 yards with the very first load I tried for the 60 grain V-MAX.