Hi,
If your little roscoe locks up tight and is in great shooting shape (which it probably is), I see no harm in running some hot ammo through it occasionally.
I've done likewise with my '64 era Model 36 no dash, and generally stoke it with Remington 158gn. LSWC-HP in +P for self defense.
That being said, it LOVES the mild 148 grain wadcutter ammo and shoots inside of one inch at ten yards with wadcutter.
In all my handguns, in all centerfire calibers, I handload light loads for practice . . . it is more fun, cheaper AND will make the guns outlast me!
T.
PS: About a year ago I found this real nice nickle-plated M36, and paid $350 for it, which is a fair price for one in this condition but definitely not a steal.
IMHO, this is probably a little on the high side for a nice M36 with original serial numbered (to the gun) stocks but no box, etc.
A year later? Probably the going price for a nice J frame like this is about $400. NO WAY would I buy one of the new "classics" . . . with the internal lock. These new ones will quickly fall in value once shot . . . and soon fall below the original ones like you and I have, IMHO.
If you insure yours for about $400 you would be about right, IMHO.