The 329pd is made for that. If you load for 44, you can shoot special level loads that when you practice. It is hard to overstate how light and pleasant the thing is to carry, even IWB.
While this doesn't address the issue of an added optic for the poster, I agree with the 329PD for anyone wishing the lightest high power handgun. Mine is a pleasure to carry, however, with 44 mag loads it may test recoil tolerance of the shooter. That, IMO, is seldom an issue if it were ever needed in a true backcountry emergency situation. K1500's suggestion of lighter handloaded practice ammo is spot on.
