Boswell,
That kind of nock should work, but I'm not sure you will be able to move the nocks from arrow to arrow. The horn nock really needs to be a good firm glued fit, bound and supported into the arrow so the forces within the nock, between nock and shaft and within the shaft are spread rather than concentrated.
I just glued a dozen horn nocks into some of my shafts for some new field shooting arrows. The tang on mine is longer at about an inch. They are glued in, shaped to fit the shaft then the nock itself finally shaped with a tile saw and file. It you are interested I can post some pictures. I'll be binding with silk from just behind the actual string nock position and onto the shaft to help spread the forces.
Mark in England