02-19-2020, 02:56 AM
(This post was last modified: 02-19-2020, 03:02 AM by lazyengineer.)
hroat to breach
![[Image: Grendel-20in-XX-20.jpg]](https://i.postimg.cc/sBVbtPtt/Grendel-20in-XX-20.jpg)
![[Image: Grendel-20in-XX-15.jpg]](https://i.postimg.cc/k6Gz5JMs/Grendel-20in-XX-15.jpg)
![[Image: Grendel-20in-XX-14.jpg]](https://i.postimg.cc/p9q3xhvy/Grendel-20in-XX-14.jpg)
![[Image: Grendel-20in-XX-4.jpg]](https://i.postimg.cc/xXGWxpFv/Grendel-20in-XX-4.jpg)
Interesting to see the rifling essentially goes all the way to breach, with a short forcing cone. Curious wear pattern between the lands, where the maloniting is really wearing out in that pattern. Not all maloniting is the same; I use a tool hardning company to malonite my 5.56 competition BBL's; and they don't have that between lands wearing off in the forcing cone quite like that. But that's a different chamber too.
Can see the tool chatter in the first photo.
Interesting to see the rifling essentially goes all the way to breach, with a short forcing cone. Curious wear pattern between the lands, where the maloniting is really wearing out in that pattern. Not all maloniting is the same; I use a tool hardning company to malonite my 5.56 competition BBL's; and they don't have that between lands wearing off in the forcing cone quite like that. But that's a different chamber too.
Can see the tool chatter in the first photo.