I know a retired GA State Trooper who had to have his issue Highway Patrolman rebuilt twice.
The Smith N frames were originally designed for a black powder round, .44 Spl.
.44 Spl just happens to be my favorite revolver cartridge.
As to the comment of a Ruger Redhawk .357 being "maybe" tougher than a Smith N frame, I must point out that NOBODY makes "S&W Only" loads.
"Ruger Only" loads are specifically NOT for Smiths, due to the pressures/recoil forces generated. The Smiths can't handle it. They will either fail in a dramatic fashion, or they will wear out prematurely. The Rugers, TCs and Colt Anacondas will not.
The solid frame design of the Ruger DA revolvers IS part of why they are so strong.
When you cut out a section of a gun frame (for a sideplate), you are my taking away from the strength and rigidity of the gun.
I like Colt, Ruger, AND Smith. I have owned all three. They are all wonderful in their own ways.
However, the strength of Ruger revolvers is well documented and is one of the reasons I picked a Redhawk for my 7.5" hunting revolver, and a .45 BH for my hog backup revolver.
It's also part of why I picked the GP100 for my "shoot the snot out of it" .357 revolver.
I actually like Pythons, Mk3s, and K frames better, but they won't last as long as the GP will, with full power magnum ammo.
I don't think you'd hurt the N frame OR the Python with hot .357 ammo. BUT, a Ruger WILL hold up better to lots of shooting with heavy loads.
How many bullets can you stack in the barrel of a Colt or Smith .357 barrel before it blows? It has been tested and documented.
How many does it take for a Ruger? (trick question, since the Ruger never failed)
If Rugers weren't damned strong, they wouldn't have heavy loads designed for them, that Smiths can't live with.
And, to be honest, do YOU want to take a nice, old Smith or Colt into the woods to hunt hogs?
I don't.
Those old workhorses are getting harder to come by, and so are their parts.
The last thing I would do with them is drag them into the woods.
Then again, a .357 is nowhere near ideal for big hogs.
If you're shooting little 200 pound and smaller piglets, it's fine.
when you're running into 500+ pounders, something bigger is called for.