Deep in that black hole was the nose of a large bullet.
Such large bullets were necessary due to the limitations of black powder, which limited velocities.
It is a 7.62x54mmR necked up to accommodate a larger bullet.
The largest bullets were about three inches in diameter.
Since varmints are generally smaller animals, large, heavy bullets are not needed.
A second piece, formed into a large bullet, goes in the barrel above it.
The large, heavy bullet still offers excellent penetration for big game hunting.
Quite the costume, really, especially when its wearer had a shaved brown head the shape of a large bullet.
But it seemed that they had dodged a very large and deadly bullet.
It was either a very large bullet or from very close range.