Lands

[Woolsocks]

noticed something interesting about my lands while borescoping. It seems some of the rifling grooves taper into the chamber, but two of them don’t. Anybody seen this before?

Bottom right side of the photo. See how it’s smooth, but the other rifling grooves taper past the lands.

 

[Cfshooter]

How many rounds down it and what caliber?

 

[308pirate]

Throw the borescope in the trash

 

[Woolsocks]

How many rounds down it and what caliber?

28 nos. About 150.

 

[stanley_white]

“Only you can prevent Borescope Hypochondria.”

-Smokey the Competitive Rifle Shooter