* I am more amazed at the quality of the scope that the shooter could place a bullet on a 8" bullseye at a distance of 7.08km. There must be something fascinating to it since, Rayleigh's criterion for resolving two points puts some physical limits to the aperture. To resolve a palm sized mark, you need a sufficiently large aperture on telescope & that's not easy to mount/operate.
* This is one of the neatest images I have seen of the effect of rifling on the bullet, in addition to the thermochemical effect on the bullet tip. The tip at that distance & time of flight goes through sustained heating & there is some evidence of rapid oxidation - much like a piece of metal exposed for few seconds to blowtorch.
* I am more amazed at the quality of the scope that the shooter could place a bullet on a 8" bullseye at a distance of 7.08km. There must be something fascinating to it since, Rayleigh's criterion for resolving two points puts some physical limits to the aperture. To resolve a palm sized mark, you need a sufficiently large aperture on telescope & that's not easy to mount/operate.
* This is one of the neatest images I have seen of the effect of rifling on the bullet, in addition to the thermochemical effect on the bullet tip. The tip at that distance & time of flight goes through sustained heating & there is some evidence of rapid oxidation - much like a piece of metal exposed for few seconds to blowtorch.