from first hand experience, after visiting my local bass pro shops, i was able to get hands on trial with even dry firing (with permission from the clerk behind the counter).
the benelli felt smoother when chambering a round, it's definitely lighter… and from personal experience (i purchased a benelli) the benelli recoils a tad more than an FN SLP (some reference for a gas gun)
the 1301 wasn't as smooth when i was fiddling with the bolt, it's quite a bit more heavy vs the benelli (though weight could be a good thing for recoil management).
in saying all that, my next gun will probably be a versamax.
my only regret was not going with a 24" benelli (i purchased the 21").