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.17 Hornet (Ackley)
Type Rifle
Place of origin United States
Production history
Designer P.O. Ackley
Designed 1950's
Manufacturer Hornady
Specifications
Parent case .22 Hornet
Bullet diameter .172 in (Bad rounding hereScript error mm)
Neck diameter .193 in (Bad rounding hereScript error mm)
Shoulder diameter .288 in (Bad rounding hereScript error mm)
Base diameter .299 in (Bad rounding hereScript error mm)
Rim diameter .350 in (Bad rounding hereScript error mm)
Rim thickness .065 in (Bad rounding hereScript error mm)
Case length 1.400 in (Bad rounding hereScript error mm)
Rifling twist 1-10
Primer type small rifle
Ballistic performance
Bullet weight/type Velocity Energy
20 gr (Bad rounding hereScript error g) BT3,515 ft/s (Bad rounding hereScript error m/s)548.8 ft·lbf (Bad rounding hereScript error J)
25 gr (Bad rounding hereScript error g) HP3,176 ft/s (Bad rounding hereScript error m/s)560 ft·lbf (Bad rounding hereScript error J)
30 gr (Bad rounding hereScript error g) HP2,975 ft/s (Bad rounding hereScript error m/s)589.7 ft·lbf (Bad rounding hereScript error J)
Source(s): Hodgdon http://data.hodgdon.com/cartridge_load.asp

The .17 Hornet, also known as the .17 Ackley Hornet, is a .17 caliber centerfire rifle wildcat cartridge originally made by P.O. Ackley in the early 1950s. The cartridge was created by simply necking-down the .22 Hornet to .17 caliber. The result was a small case with relatively little noise capable of high velocity.

Ackley mentions it as one of the most balanced of the .17 cartridges of his time. [1]

This cartridge is now available as a factory loading; the 17 Hornet from Hornady uses a 20grain "Superformace" V-max projectile at a published velocity of 3650fps. [2] However, the new standardized ammunition/brass is not built to the same dimensional specifications as the original wildcat or the dimensions listed on this page. Hornady's standard has a shorter body, shorter overall case length, and a thicker rim. Shooters wishing to use the Hornady product in a Wildcat .17 Hornet chamber will experience the bullet jumping to the rifling and lose the inherent accuracy the cartridge has been known for, if the rim thickness allows the firearm to function at all. Many firearms that have offered the Wildcat .17 Hornet depend on rim thickness for headspace. In such firearms, shooters may not be able to use the new ammo/brass without having their chambers modified for the thicker rims. This may allow the Hornady products to function, but again are likely to reduce accuracy significantly.

See alsoEdit

ReferencesEdit

  1. Cartridges of the World 8th Edition, Book by Frank C. Barnes, DBI Books, 1997, ISBN 0-87349-178-5
  2. Script error

External linksEdit

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