Mossberg, Winchester 1300, Rem. 870, Ithaca 37, Browning BPs, have owned and used all, still have the BPS, 870 and Ithaca. Without going into detail, I never liked the Mossy, and kept it a very short time: feeding problems, just felt kiddish. 870 and BPS and Win. 1300 are built to last several lifetimes. All pumps are engineered to be aggressively racked, but IMO the Winchester has the fastest and slickest action. Its rotary bolt is almost an assist in the cycling ( I think it was actually part of the advertising at one point) so it cycles the quickest and smoothest, my belief it is the least likely to short cycle or have a feeding problem when fired related to this. If cycled manually, dunno, but I never had problem. The ithaca can mis feed if it isnt upright- the cartridge will fall, possibly mis-angled in the action, not being controlled by the carrier. I sold my Winchester despite shooting it better than any other gun of mine, because I thought I had to have an 870. Something to do with the aluminum Win. reciever as opposed to the milled steel Rem. reciever. I have been trying to get it back since. The BPS is a fine gun, but extra money is paid for the gloss and finish without getting much more back in return.