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.17 Hornady Magnum Rimfire

Bullet diameter
4.37 mm
Case length
26.87 mm
Max pressure
179 MPa
Introduced
2002

Specification

Everything measured

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IdentityWhat it is, who designed it and what else it is called.

Cartridge type
Rimmed
Introduced
2002
Designer
Hornady
Parent cartridge
22-wmr
Also known as
.17 HMR, 17 HMR, 17 Hornady Magnum, 17HMR, 4.5x26.9mmR, 4.5x27mmR

DimensionsThe case and the bullet, to a hundredth of a millimetre.

Bullet diameter
4.37 mm
Neck diameter
4.83 mm
Shoulder diameter
6.05 mm
Base diameter
6.05 mm
Rim diameter
7.26 mm
Rim thickness
1.27 mm
Case length
26.87 mm
Overall length
34.26 mm

BallisticsWhat a typical load does, and the pressure it runs at.

Max pressure
179 MPa
Max pressure, psi
26,000
Typical bullet weight
1.30 g
Typical muzzle velocity
775 m/s
Typical muzzle energy
390 J

ConstructionWhat the case, primer and projectile are made of and shaped like.

Case shape
Bottleneck
Case material
Brass
Primer
Rimfire
Projectile
Bullet
Bullet profile
Hollow point
Mouth closure
Bullet

Provenance

Where these figures came from

Every figure above was taken from one of these pages. The confidence reflects how much of the record came from a page a claim can be checked against.

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Confidence in this record

90%

API

The call that returns this record

The same fields, in the same units, from the same endpoint the page reads.

curl --request GET \  --url 'https://api.gunspec.io/v1/calibers/17-hmr' \  --header 'X-API-Key: your_key'