If the magazine and leade allows it, by all means seat the bullets farther out. I would drop my load a couple gr. and work as pressure signs indicate. Some guns immediately increase pressure with longer seating (rare), even in guns wiht long leades, while others don't.

Whenever changing anything with a load, it is wise to reduce it somewhat for the first trial.

The Lee die will allow a good heavy crimp on bullets either not having crimp grooves, or for crimping where there isn't one, of course. It is a very handy die to have for many calibres, especially the straight ones or cases with very gentle tapers.