I guess I should explain.
Drums are the easier to line up because they have strong initial transient sounds. The sound of the hit then its followed by the reverberation of the drum head.
Ignore the last part and find the point on the sample that has the initial strike. By zooming in you should have no trouble seeing this hit. Then all you need do is move one or the other sample to match the hit. Use Aim Assist if you need to. I use the smart tool for this. It is very simple to do, far easier then to explain how to do it.
Of course you will need to turn off snap to grid.