|
The ogive is the "nose" of the bullet. Technically, it's the radius of the curve of the nose. It starts at the very tip of the bullet (which is called the meplat) and reaches to the point on the shank where the bullet becomes full diameter. Nothing ahead of that point touches the bore.
So the bullet bearing surface is the length of the shank between the ogive and the base.
The 55 FMJ bullet as originally used by the military has a long ogive AND a boattail, both of which have the effect of reducing the bearing length. On samples I've measured, that was a total pf .190"...WAY less than one caliber! Most case necks on the .223 run .210 to .215" in length.
|