Rotating Radial Barrel Profile Video (RR-L)
- Video at an angle of 90° to the barrel bore
- Superimposition of rotation and feed movement according to twist
- 1 pass per stroke/field pair
A 90° mirror directs the view directly onto the inner surface of the barrel. This reveals surface changes caused by corrosion, erosion and discolouration due to deposits and thermal stress (similar to the linear radial barrel profile video). With the RR-L, the movement of the video head is superimposed with a rotation of the barrel. This creates the impression that the rifling/field pairs run straight. This makes it possible to view the condition of individual rifling/field pairs from the muzzle to the transition cone.
The rotating radial barrel profile video can be used for single-shot bolt-action rifles, semi-automatic rifles and muzzle-loaders with cylindrical barrels. Automated video generation is not possible for fluted or angular barrels.
The video on this page shows an excerpt from a rotating radial barrel profile video. The time is measured from the muzzle and can be calculated back to the X-coordinate using the constant travel speed (not possible here due to the shortened video).
Weapon: DWM 1908, 7×57 Mauser, barrel length 29.3‘, twist length 8.66’
