Gunsmithing barreling timing

[Wannashootit]

^^
So, you're of the mindset that bore curvature generally follows the OD of the barrel and isn't independent of it?

 

[Seymour Fish]

I would tend to agree. If you could see how much that barrel whips upon firing, you might not be so concerned about barrel timing on an already assembled gun. Plus, I lost four inches of elevation on my gun just by screwing on a break. It didn't affect the grouping at all. It just made everything shoot about 4 inches lower at 100 yds.

That’s a lot. Top vents vs a little heavy ?

 

[eastexsteve]

That’s a lot. Top vents vs a little heavy ?

I think anytime you hang something off the end of a barrel, you are going to change the point of impact - some more than others depending upon the harmonics.