Start with a good .357 in a 3 or 4 inch barrel. Ammo is reasonable, you can shoot .38 special in it, and if you like that they you can expand that into all calibers.
I suppose it all comes down to what you intend to use it for. If it is a defense weapon then I agree with Ace; a .357 is a wise choice. Had a chance last week to shoot my fathers model 65 and was impressed with its performance. On the otherhand if you're just out looking for something to plink with, I'd recommend a 22lr in either a model 94 or if you can find one a Tracker 970.afrats said:I'm thinking about buying my first revolver. What would be a good one to start with?