If you use that load in competition then there is a good chance that you have a high round count of it, so I say look closely at your forcing cone and the rearmost area of rifling in your K & L frames, the evidence (one way or another) will be there if you have shot thousands of these.

Me? I hate touching the cylinder of a K-L-N frame after only 18 fast rounds of Titegroup fueled .38 Special. .38! Not .357 Mag. And I mean I cannot stand the heat.

If you don't notice it or don't mind it and your barrel looks fine and your ammo runs, I see no reason to worry about your load.