well, if it is indeed 150 year old wood, then dont shoot it much, as the wood may begin to disentegrate...
You know not of what you speak.
The Lang record book says that my Joseph Lang with original wood was completed March 6, 1866 so it is now 157 years old. I quit counting cartridges shot in it several years ago and that was at 6,000 so it's now fired between 6,500 and 7,000. The wood is still fine and I'll continue shooting it until I pass it down to my grandson or granddaughter. And I suspect that one of them will be shooting when they reach my age of 74 and they are only 16 and 12.