Iron and lead-containing composite metal shot

Details Iron and lead-containing composite metal shot Iron and lead-containing composite metal shot

1975-02-03

1976-10-26

Padgett, Benjamin R.

Ammunition and explosives

Igniting devices and systems

29 123, 29182, 291821, 291822, 291823, 291825, 75200, 75208R, 75211, 75212, 75223, 75224, 102 922, F42B 700, B22F 316, B22F 700, B22F 704

Patent

active

039877302

ABSTRACT:
Composite metal articles of high density are made from iron and lead or a lead-rich alloy in proportions suitably of about 25 to about 90 wt. % iron, when present up to about 5 wt. % of a lead alloy-forming element aiding wetting of the iron, and the balance substantially all lead. Preferably copper, zinc, tin, indium or mixtures thereof are present to aid wetting the iron phase.
Composite bird shot, for instance, is prepared e.g. by matrix formation and infiltration, or by agglomeration techniques, or by other techniques, with, if desired, a final mechanical shaping or compaction. The presence of iron has been found to cause a significant reduction in toxicity to birds on ingestion.

REFERENCES:
patent: 2033240 (1936-03-01), Hardy
patent: 3301642 (1967-01-01), Youssef
patent: 3363561 (1968-01-01), Irons
patent: 3463637 (1969-08-01), Foerster
patent: 3664824 (1972-05-01), Meadus et al.
patent: 3900317 (1975-08-01), Meadus et al.

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