SR primers are slightly taller and much tougher. They'll give misfires in some (most?) pistols. I'm not sure what they would do to typical small powder charges in pistol cartridges and have no intention of finding out.
I so shoot some .357 Max, and the SR is the correct primer for that cartridge. I might consider using SR primers in .357 Mag cases with the very slow powders were I planning to hunt in extremely cold weather with a carbine, but that is the only case I can think of.