Caring for your precious English gun is of great importance and especially the barrels. The thickness of the barrel decreases by;
Before the blueing takes place, barrels will be polished. This means a very small decrease in the thickness of the barrel wall. Because in older guns this
process has often been made several times, a substantial portion of material removed in his manner.
Once the barrels are affected it creates an uneven surface causing cleaning has less effect because the brush does’t reach the material in the "valleys" and process of effecting continues. If the barrel is damaged it must be examined whether the barrel can be lapped. A small layer from the barrel is milled and then comes over to reappear slippery. This can, of course, only if the thickness of the barrel is sufficient for this operation
It is therefore of utmost importance that you carefully handle the barrels of your gun. After using your gun so immediately clean the barrels and not days latter or worse leave the gun in the guncase.
When is a barrel clean and how do I do it?
Think carefully to the maintenance because new barrels are expensive!
Purdey charges at this time GBP 10,000, == for the replacement of a barel.