Hello ! First post here,this is a nice forum and some swell folks ! Always thought the Browning 1903 was an oversize Colt 1903 Hammerless,or maybe the Colt is a mini Browning !
Check out this website Göta Vapenhistoriska Sällskap follow menu to find info on the Browning 1903/1907.
Century Arms had a bunch of boxer primed 9mm Browning Long ammo not too long ago at cheap price. Ivan has one of these neat pistols,a Swede manufacture rebuild. It is lots of fun to shoot and a good choice for recoil sensitive shooters. Have also a .380ACP barrel for it.Works well with both.