|The Ruger SP-101 Revolver|
|The Ruger SP-101 with .357 Magnum Cartridges|
When Federals engineers began working on improving the ballistics of the .32 H&R Magnum, they soon realised that this was a tall order and, to make good use of more modern
propellants, the decided to develop n entirely new .32 caliber cartridge and came up with the .327 Magnum. Although based upon the earlier .32H&R Magnum, the new .327 Magnum uses a case .14 of an inch longer for a length of 1.2 inches. The also strengthened the head of the cartridge case so that in could cope with the extra power generated by modern powders. At present ATK, the parent company of Speer, CCI and Federal, plans to offer the new cartridge in three different loadings: a Federal 85 grain Hydra-shok; a CCI 110 grain jacketed soft; and a Speer 115 grain Gold Dot.
Now all that was need was a firearm to act as a launch platform. Federal worked in conjunction with Ruger, who now plan to offer their popular SP-101 revolver chambered for the new cartridge. The SP-101 was a wise choice. It is one of the stronger small frame revolvers on the market today and is more than capable of standing up to the 45 000 psi generated by this new mini-magnum.