I would wait and see what T/C does. Yes their warranty does state original purchaser.

However, over the years I have sent them usedstocks, locks, barrels, sights, trigger assemblies for repair and they have always warrantied everything. Most of the time they simply ship me a new replacement. Although I have never sent them anything that was obviously neglected.

That may be or have changed?

Although they are warranty removing abroken stuckbrush in one of my 45 barrels (used)this week in fact.

If for some reason they don't replace the barrel for free, then perhaps they will offer a replacement or you could search for a used barrel or another NE with a decent barrel?

I would not fool with trying to have a .56 bored out.

M2C,

Tahquamenon