Abstract: An improved method of and apparatus for pressure casting metal are disclosed. The method is generally known in the art as "squeeze casting". The present method provides for casting articles under forging pressures in a die to predetermined dimensions regardless of varying amounts of excess of poured molten metal, by the inclusion of a retractable charge-quantity compensator positioned adjacent the casting cavity to form on the cast article an extension which may vary in volume from article to article. The extension is later removed. The charge-quantity compensator may be in the form of a piston in a cylinder with hydraulic fluid behind the piston connected to a hydraulic source. The piston, which may be normally biased toward the die cavity but yieldable away therefrom is fixed in position when the punch die has advanced to a predetermined position at which the quantity of casting material in the die cavity is appropriate for the article being formed. Full casting pressure is then applied.