I have a ruger chambered in .357 magnum with a 2 inch barrel, and the trigger is stiff i would Not monkey around with the springs inside at first.

I would how ever recommend that when you go to the range take it with you and shoot it as much as you can, when you can't get to the range dry fire it as much as you can.

That may help smooth it out.

But if after a while it does not help talk to a good gunsmith about changing out the springs or monkeying around with the guts.