View source for .30-30 Winchester

The '''.30-30 Winchester''' (Originally .30 Winchester Center Fire, or .30 WCF), or merely '''.30-30''', is a smokeless powder cartridge released by Winchester in 1895. It was released during the second production year of the [[Winchester Model 1894]], alongside the [[.25-35 Winchester]]. It was based on the older [[.38-55 Winchester]] black powder round, one of the cartridges the 1894 was initially chambered in.

== Design ==

The .30-30 was created by necking the .38-55 case down to .30 caliber. Because of the change to the more powerful smokeless powder, a 30 grain charge was found sufficient to meet or exceed what Winchester planned for.

== Specifications ==

* '''Parent case:''' [[.38-55 Winchester]]
* '''Case type:''' Rimmed, Bottleneck
* '''Bullet diameter:''' 0.309 in (7.85 mm)
* '''Neck diameter:''' 0.3301 in (8.39 mm)
* '''Shoulder diameter:''' 0.401 in (10.19 mm)
* '''Base diameter:''' 0.4195 in (10.66 mm)
* '''Rim diameter:''' 0.506 in (12.85 mm)
* '''Case length:''' 2.04 in (51.80 mm)
* '''Overall length:''' 2.45 in (62.23 mm, min.) to 2.55 in (64.77 mm, max.)
* '''Rifling twist:''' 1:12
* '''Primer type:''' Large rifle