Every rifle will be different.
You will have to measure your own.
Load a bullet into an empty case with no primer and no powder.
Hold the bullet over a kitchen match so that the bullet is covered in soot.
Gently place it in the chamber and close the action.
Gently extract it, and look for marks made by the lands (rifling).
They will appear as a small square at regular intervals around the bullet at the ogive.
The ogive is where the curve of the bullet straightens out into the flat length of the body of the bullet.
You do not want the bullets jamming into the rifling as that causes a pressure spike early in the timeline.
Keep re-coating with soot and setting back 0.010" at a time until there are no more contact marks showing up.