by B.B. Pelletier
This question came in last week in the form of a comment about pellet sizing. Pellets are sized by pushing them through a die, and it used to be popular to do it in the 1970s. Shooters eventually realized that the bores of their airguns were doing the same thing, and sizing wasn’t really necessary.
Pellet head size is a different topic that’s still very relevant, so today we’re going to look at what’s involved. It all begins in the past, when conical bullets were first used in firearms in the 19th century.
Conical bullets are longer than they are wide, so they weigh more than the round balls that served as bullets for several hundred years. But because they’re longer, they can also create more friction with the bore. When they’re loaded from the muzzle, this is a problem because it takes so much more force to seat them down on the powder that the effort will usually distort their noses, adding nothing to accuracy.