Is it authorized to make a Soldier take a record APFT in OCP and boots?

To be honest, an officer that has their unit take a record APFT in OCP and boots will immediately alienate their soldiers and lose their respect. There are no issues doing this for a diagnostic, but when it comes to enlisted personnel, you're messing with promotion points and boards when you do this for a record. Remember when it comes to promotions, they're put up against all soldiers in their MOS and not just the soldiers in their unit.

For me, I was able to ace the run and situps when I was in, and do pretty good on the pushups. Had I had to do my run in boots, my two-mile time would've been at least 2-3 minutes slower.

FM 7-22, Appendix A, A-5: Any piece of clothing not prescribed as a component of the IPFU, ACU, or commander authorized civilian attire is not permitted for wear during the APFT". OCPs are not ACUs therefore technically not permitted. I haven't been able to find an updated FM 7-22 where they replaced ACU with OCP in the verbiage. Again, technically, since they pushed the wearout date on ACUs until OCT (IIRC) you could make the soldier take the APFT in ACUs and boots.

You have to comply with the book