I've recently read of an Italian ammunition company beginning production of bullets using aluminum jackets, but instead of simply being a thin covering to keep lead from steel, its jackets will be sturdy and simply a lower-cost replacement for gilding metal
Eventually a mild brass alloy known as gilding metal
became standard, containing 5 to 10 percent zinc as compared to around 30 percent for cartridge brass.
Capitalizing on the burgeoning popularity of homogeneous bullets, Homady's GMX (for Gilding Metal
eXpanding) offers dramatic, immediate expansion coupled with outstanding penetration.
Those early bullets, made by simply swaging a lead core into a gilding metal
jacket cup, suffered heinously.
The Oryx features a lead-alloy core and a jacket that is drawn from standard gilding metal
. The core and jacket are solder bonded to prevent core and jacket separation or slippage on impact, even at close range and high velocity.
A gilding metal
wire jacket is applied via an impact process that results in less variation in jacket geometry and better adhesion to the core for better weight retention and deeper penetration.
Abbreviations: GMX, Gilding Metal
expanding: TS-X, Triple Shack-X; SST, Super Shock Tipped; TBBC, Trophy Bonded Bear Claw Weatherby Vanguard Sporter TYPE: Bolt-action repeater CALIBER: .338 Winchester Magnum (tested) CAPACITY: 3+1 BARREL LENGTH: 24 inches, No.
Experimentation eventual y arrived at today's most-common jacket material, copper alloyed with a little zinc, known as gilding metal
The Nosier E-Tip is made of 95/5 gilding metal
, but has no grooves.