Im want a slug gun.
Im deciding between
a
Remington870 w/ Cantilever rifled bbl or a
NEF Ultra slug hunter

Obviously the actions are night vs. day
Which is better for accuracy, durability.
Ive heard great things about the NEF, does its accuracy beat the 870 that much to pass on the quick 2nd shot?
This will be a deer gun only so even if I get the 870 I doubt it would be used for anything else.
Which is the better choice 12ga or 20Ga ??
I like the stopping power of a slug gun.