If I recall correctly, you're shooting a S&W Model 360 Airweight. That is most definitely NOT a range gun - meaning, it's no fun to shoot at the range. My hand would be hurting after 30 minutes, much less 45.I would feel it at the end of about 45 minutes at the range. But I may be holding too hard as I'm still getting comfortable with having a gun. I have a lot of respect for what it can do when needed for protection and to not be careless with it.
The reduced recoil of a regular load, and not having a death grip on the pistol should take care of it. I shoot .22 rimfire pistols for about 90 minutes at a time once a week, and no problem at all.Windy, tell me about this gun fitting properly. It feels comfortable in my hand. I think I'm tensing up waiting for the kick. And I was using the +P, rather than reg ammo.
I need to get back to the range with the reg ammo and see if that makes a difference.