The GP100 in .327 Federal Magnum holds 7 rounds instead of the standard 6 due to the smaller cartridge diameter. The .327 Federal Magnum is a high-pressure small-caliber cartridge capable of matching .357 Magnum energy in some loadings while also chambering .32 H&R Magnum, .32 S&W Long, and .32 S&W Short — giving this revolver four-cartridge versatility. The 4.2-inch semi-lug barrel balances handling and ballistics. Type: Revolver Action: Double-Action Caliber: .327 Federal Magnum Capacity: 7 Year introduced: 2017, USA Weight: 38 oz Overall length: 9.5" Status: Active Intended use: self_defense, sporting, hunting, defense