Flyingfool: the loaded weight of the s&w model 60 with the 3 inch barrel is 28 ounces.

The loaded weight of a ruger sp101 chambered in .357 magnum with a 3 inch barrel is 32 ounces.

Now i know you mentioned that the ruger sp101 with a 3 inch barrel is difficult for you to carry, but that extra weight will help to control the revolvers recoil.

Now a good holster and a good belt will help make the carrying process easier, now if chose a shoulder holster the weight of the gun will be distributed among your shoulders and back muscles.

If you chose chest carry the guns weight will be distributed onto your chest and stomach muscles.

I hope all of this information is helpful