Yep, seating bullets slightly deeper is an easy way to break the bond.
Another way to prevent it is not clean brass unless necessary, and it rarely is. Aside from wiping off cases that fall on the ground, I rarely clean 'em. The inside of the necks gets a light brushing, but not enough to remove the last light layer of powder-fouling. I haven't had a problem with cold-welding in many years.
I also never tumble, unless absolutely necessary. I just brush necks lightly with nylon brush , wipe off grit. Lightly clean primer pockets and load. I never had issues with Cold weld. I am also lazy so in this case it has helped me........
