Sorry, no experience with the 1400. Few folks bring them to the range, there may be a lesson there.Not nearly as good as the X1.
Worth a try, if the price is right.
Light 20s using oz loads are oft quite vicious kickers.
OTOH, an oz load in a 12 gauge 870 is kinda soft, IMO. 7/8 oz are creampuffs, and still break targets.