To echo what Neil & Dave have already said, stag can be quite durable but is subject to environmental conditions. I've had several quality stag handled knives for many years and they are just as tight & usable now as they were when I bought them.
One in particular, a Puma Bowie, stands out in my mind. After 30 or so years of use -- much of it in extreme conditions -- the stag has darkened & shrunken just a little but there are no cracks and the fit is still rock solid. In fact, the shrinkage is noticable only at the point where the slabs meet the tang -- they are no longer flush. However, if I didn't point it out, I doubt that most people would notice.
I just want to clarify what I meant by "they are no longer flush." The scales are still flush against the tang -- i.e., no gaps --but they did shrink somewhat in width. In other words, when you run your finger over the scales from one side of the handle to the other, you can feel the tang.
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Cheers,
--+Brian+--
I may be goin' to hell in a bucket, Babe, but at least I'm enjoyin' the ride.
[This message has been edited by bcaffrey (edited 17 November 1999).]