Triple Lapped Barrels

[Spawn78]

Can someone point me in the right direction as too who makes triple lapped rifle barrels. I thought I had a deal with a gentlemen with a custom remington model 700 .308 with a us optics scope on it, but he decided to keep it. I'm wanting a custom Remington 700 action chambered in .308 with a McMillian stock. And a 20" triple lapped barrel with no optics.

[FALPhil]

What does "triple lapped" mean? I have lapped many a barrel, and when done properly, it does not need to be done three times.

[Spawn78]

Lapping before rifling is done to remove boring machining marks and makes for smooth lands with a consistent bore diameter. After rifling is complete, the grooves can then be lapped to smooth those out without making the bore any larger. This is done with a lead lap, cast into the bore. Since the lead shrinks upon freezing/cooling, it is a bit smaller than the bore/groove. The groove diameter of the lap is larger than the bore portion and by rolling the lap on a hard plate loaded with fine abrasive, only the groove diameter will be lapped. This must be carefully done to preserve groove diameter.

This is a double lapped barrel.

Finally, after the chamber and throat are cut, the leade can be lapped to remove tooling marks from the reamer.

That is a triple lapped barrel.

[Unobtanium]

Hammer forged eliminates all that mess. But I digress. Why not consider a Llija, kreiger, lothar walther, etc. and not worry about how they arrive at the final product, as it is proven exemplary whatever the means.

[PvtPyle]

^^^That^^^