What is the Spring rate of A p365 stock Recoil spring?

I use +p ammo exclusively, should I upgrade to a stronger recoil spring?

I would call Sig for recoil spring info.

Since you asked a similar question here:
https://sigforum.com/eve/forum...0601935/m/4630027415
I'm thinking you're talking yourself into trying a stronger spring, in which case I would not trust it until I had at least a few hundred+ rnds on that spring.