12/28/2022 0 Comments Two stage ejector mouldBoth jacketed and non-jacketed bullets can be swaged easily with Corbin tools. They also protect the bore from fouling or melting of the core material from friction and heat. Jackets protect the core material from excess friction, deformation from gas pressure in the barrel, and control performance on impact. They take on the shape, diameter, and even the finish of the die surface. They are expanded and formed with internal pressure against the ductile core material, until they are stopped by the diamond-lapped die walls. Jackets are always slightly smaller than finished bullet diameter, and are expanded by the high internal pressure applied in "seating" the core. The "jacket" can be purchased from Corbin, or made at home from copper tubing or from flat copper strip, with Corbin jacket-making tools. For more than 50 years, Corbin has been the world's foremost manufacturer of bullet swaging equipment, supplies, and information.īullets can be made of one material such as solid lead, copper or a powdered metal mixture, or they may be "jacketed", meaning the core material is covered by a "skin" normally made of relatively thin copper or brass alloy. Pellets, shotgun slugs, pistol and rifle bullets, round balls for muzzle loaders - nearly any kind of bullet - can be swaged in one or more steps, depending on the design. The process can be used to make lead or jacketed bullets, even lead-free bullets from ductile mixes or powders, in virtually any caliber and shape. This causes expansion in diameter to the exact shape and size of the die cavity and punch ends, transferring the precision finish of the die and punch to the bullet. The pressure is applied through hardened, high strength punches which compress the material inside the diamond-lapped die. Pressure in the 10,000 to 50,000 psi range is applied with a powerful high precision press. You can draw down, but you always swage up. When you SWAGE a bullet, you expand it to a slightly larger size in a pressure-sealed die. When you DRAW a bullet or jacket, you push it through an open ring die that reduces the size. A swag is curtain fabric draped in a loop, items stolen by a thief, or party gifts, not a process. Swage is pronounced like "wage" or "stage". Materials to be swaged move like putty under 10,000 to 50,000 psi pressure to take on the size, finish, and shape of the die cavity. To "Swage" is to form projectiles - bullets, not loaded cartridges - using high pressure at room temperature to flow materials in the cavity of a diamond-lapped, high precision die. Bullet Swaging: (Pronounced "Sway-jing", like "Gaging" or "Paging").
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