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A couple grains difference in bullet weight isn't going to make much difference if any. What does make a difference is the depth the base of the bullet is seated in the case. If you know the length of the other bullet you can measure yours to figure out the difference.
You are using a fairly deep seating with that OAL. Having the bullets fit your magazine and they feed to the chamber well you should be fine. You are still going to have to work the load up just as you would any other load you develop. You want it to cycle the pistol first. Once it does that you can increase the load a little at a time to get the accuracy where you want it to be.
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