1887 is a black powder only gun the 1901 was the smokeless gun. It is also a 2 7/8" chamber do not fire modern ammo in it. It is however a neat peice to add to your collection.
Regards
If by add to his collection, you mean, start loading trimmed shells with blackpowder, then yes, I agree.
You can either get the brass shells and hotglue the overshot wads on, or use trimmed plastic shells and a homeade shotshell highchair in your standard ten gauge press, (I use the MEC convertible in 10 and 12) for a crimped load, or use a overshot card with plastic shells and spin on the rollcrimp.
The rollcrimp device just a cup like affair that chucks into a household drill.
You can do it handheld but most people who load scads of shells use a snap closed shell vise, and cheap drill press so you get equal height and compression for best patterning.
The highchair with standard press is easiest, but some people just adore the rollcrimp, and of course brass shotshells have ### appeal (by which I mean that people see alot of your GF's ass as she scrabbles around in the dust for those shells).
A gun collection outside of a museum, is a waste of perfectly shootable guns.