Used gun value is generally based on The Brand Value level (BV) of the maker's name (the name on the gun), the Original Quality grade (OQ) of the gun, and the Current Condition level of the gun (CC). There are some more or less standard descriptions/definitions/lists for these criteria. If interested in this method give me a maker's name, description of the gun as it left the maker's shop, and the current state of OE finish/damage/repairs/replacements/restorations/etc. If you do, I'll run a sample of this method's output.
A direct answer to your question is that it depends on the BV of the maker, the OQ of the gun, and the CC. The higher the BV-OQ-CC the bigger the hit from any "wart."
DDA
