This terminology confused me at first, too. I've been shooting 40 years and did very little of it on 'ranges' per se; all my guns were otherwise dedicated, or I wouldn't have owned them.
I mentioned this in an internet discussion awhile back and none other than John Taffin chimed in with a rational explanation. Despite the collective experience of those of us who have hunted, woods-bummed and used firearms in serious applications for decades- the urbanization of America has brought us a generation of shooters who have never done these things. Their experience with firearms has centered around public ranges. They might have a house gun, a carry gun or a gun they hunt with; but they've probably also got a 'range gun' which is generally interchangeable with what us old buzzards would call a woods gun, target gun or a plinker.
I'll admit that I still only sort of 'get it'. I do know that we will eventually pass the torch to these new folks and that if we'd like for our grandchildren to enjoy the freedoms we have known, we had better accommodate them.
So kids, call them whatever you want. Just keep buying them, shooting them, and voting like you intend to keep them.