The local gunsmiths here in my neck of the woods in N.H. don't know much at all about repairing real SxS's (already found out the hard way). My Zephyr boxlock was balky sometimes, now the left barrel refuses to fire. It has sentimental value, so I would like to send it to somebody good. The last gun I had a problem with I brought to NE Arms, but we know that is no longer an option. Recommendations ?
thanks
Rick

"Sometimes too much to drink is not enough" Mark Twain