§Unlike smoothbore guns, rifled
ones had spiral grooves in the bore that gave
a spin to the projectile.
§The spin stabilized the
projectile in flight giving greater accuracy and range.
§Rifling also permitted
the use of elongated, pointed projectiles in place of
spherical cannon balls.
§Experts disagreed at the time about the
impact these improvements would have on fortifications.
§Some said the new
weapons presented no greater threat than the ones they replaced,
however, experience during the Civil War proved that point of view wrong