I'm going to interpret this as "If the gun can't hold up to warm 44 Special loads, how can it last in 41 Magnum?".
It's a good question. I expect the 41 Magnum gun is going to have to be a bit bigger just to accommodate the longer cartridge, so perhaps the gun will be larger and stronger overall.
As I said before, 41 Magnum recoil in such a light gun will be "interesting".