I’ve just looked at my notes and my memory is clearly not what it used to be!
From Honeywell: A320 Roll limits in MANAGED are:
1. between 150KTAS and 300KTAS the bank angle is 30° for flight plan legs
2. 100KTAS to 375KTAS the bank angle is 25° for holding patterns, procedure turns and arcs.
3. TAS 450 and above bank angle 19° for all turns
4. Linear joins for the above.
The difference in bank angle I mentioned in previous post was not due to AP off or on, it was due to NAV vs HDG.
In the sim at FL390 450+ TAS, turning 90° to intercept a HDG gave a HDG of 15°AoB. When NAV was engaged during the turn (to the waypoint off to the right), the AoB increased to 19°AoB.
On the day I assume it went the same, as it all went to plan. I’d have to look at the FOQA data replay to see what it did.