The question isn't can it be done but should it be done. You will be increasing the SAAMI chamber pressure from 15,000psi to 21,000psi and that's for factory standard ammunition. That's twice the pressure difference between a 38 spl and a 38 +P! If you use the 32 mag +P, the pressure will be even higher. How much higher we don't know because there isn't a standard for 32 mag +P ammunition.

I don't think I would do it.