The 30-30 Winchester centerfire rifle cartridge is a .30″ caliber, rimmed, bottleneck cartridge case design and reloadable. Rifles chambered in this round have a barrel bore land to land diameter of .300″ and a bore groove to groove diameter of .308″.Common barrel rifling twist rates for the 30-30 Winchester are;1 in 12″. Common barrel lengths for the […]
ammo
All About the 257 Roberts
Ned Roberts created the wildcat cartridge, the 25 Roberts, in the 1920s. In 1934 Remington introduced the .257 Roberts rifle cartridge. They were experimenting with the 25 Roberts, and wanted to produce it commercially. Because of this they had to make changes to the case itself. The original cartridge was 7X57mm necked down to a […]
340 Weatherby Magnum Ballistics and Information
340 Weatherby Magnum: The 340 Weatherby Magnum was developed by necking up Weatherby’s already well established 300 Weatherby Magnum to a bullet diameter of .338 inches. This filled the Weatherby cartridge gap between their 300 Magnum and 375 Magnum. This cartridge went into mass production in 1963. The 340 Weatherby Magnum is very powerful, loaded […]
Have You Ever Heard Of These Three Lesser Known Ammo Manufacturers?
Most folks who have been around the shooting world for any time at all know of the big names in ammunition. Winchester, Remington, Federal, and Hornady easily come to mind when talking hunting, training, competition, and defensive ammo. There are many others of course, including foreign companies that manufacture ammo. A recent conference sponsored by […]
22 Hornet Ballistics Chart, History
22 Hornet History: It was designed as one of the first high velocity centerfire 22’s to use smokeless powder. While this cartridge can be attributed to the efforts of several individuals it was Winchester that put it all together in 1930 and introduced the 22 hornet with a bullet diameter of .223″. Today’s 22 Hornets […]
