i think price about 4-5 refs

Honestly. Downvote.

I've Never seen these go for more than 4 ref.

If anything, these should be lowered to 2.55-4 ref

If you need proof, look up the Vintage crossbow on outpost, there's pages of them unsold at 4 ref or 2 key buyouts.

4 ref seems to describe this "adjustment" fine =/ And I never see them sold at a key

This price range is too large.