To answer the OPs original question I think the Remington 125 grain JHP would be historically correct.
On the Police Department we were issued model 65s with the Remington 125 gr. Load. We had the revolvers for a little over 5 years I recall before the 9mm high cap craze swept by and we were issued Sig P226. I bought my issued 65 for $100 when we transitioned.
The Remington load had a very high rating for one shot stops. They were a very potent load.
When we qualified with the 65s - 2 or 3 times a year - we would shoot off our duty load out (18 rounds) first and then switch to .38 to finish the course. I do not recall hearing about any cracked forcing cones or flame erosion from our department and would not expect it with that use. I don’t recall many guys shooting full power loads during off duty practice.
I have seen a cracked forcing cone on other 65s issued by the Armored Car company I worked for in retirement. Many of those had been bought used from police turn ins and the round counts were probably high.