Bang.................................you dead, or worse.

[Treeman]

Mate a mine just blew up his 270. After a week of speculation and theorizing  we pretty certain this is what happened.
The rifle had a issue in that it shot beyond believe grouping, but only when the bullet was touching the lands. Occasionally, rarely a bullet was left in the lands when making the rifle safe after cocking but not firing the rifle.
A mate of his was using the rifle on the back of a bakkie and tried a shot at something but it ran off. They stopped the bakkie to walk further and see if they would see it again, but as he jumped of the back he saw a jackal. He quickly whispered "rifle rifle" and it was passed to him as the jackal started to walk off. He grabbed rifle cocked it fast and hard, lifted, aimed, fired, and it exploded.

What happened ?
After aiming and not shooting his friend ejected the case in the rifle as he jumped off bakkie. While was doing so the urgent call for the rifle was made and he passed it over in a rush.
What appeared to have happed is that when his friend ejected the unfired round, the bullet was left stuck in the lands. When he reloaded in a big exited rush the bullet in the lands was pushed forward and the bullet it the case was pushed deeper.
                                  GEFKnBOOM