Sholo the be all and end all is the way they are made and what they are made from.
The rifling is mandrel drawn button rifling...this process work hardens the rifling
tempered and hand straightened
Every barrel is lapped
And they are hand choked
This all adds up to outstanding accuracy and reduced pellet preference. As well the barrels will continue to perform for a lifetime and more because they are not made from Mild Steel
The application are as endless as there are things you can put a barrel on