If it's stock, and you use it for normal shooting duties, it should be fine as it is.
If you want to compete with it, you'll want to do a spring upgrade and make sure the bolt drops securely in the recesses of the cylinder.
1. Measure the bolt width and each cylinder recess. Pick the smallest recess and stone the LEFT side of the bolt (gun pointing away from you) ONLY where it protrudes from the frame, to .001 smaller than that size. Make sure to leave the edges square, but remove any burs.
2. Strip the gun down and debur all parts (including the inside of the frame) and polish all the contact surfaces without changing any angles. You're just removing machining marks here.
If you plan to "Fan" the action, you'll need a lifter block upgrade to ensure positive lockup.
Check this out http://www.gunblast.com/JimTaylor_Uberti.htm