X-ray wrote:
last year I conducted a few experiments here in London to see whether certain bullets had ferrous properties and therefore could possibly pose a hazard if the patient went for an MR scan.
Nontoxic shot regulations apply to waterfowl, (ducks, geese, and swans) and coots. Nontoxic shot is defined as any shot type that does not cause sickness and death when ingested by migratory birds.
The shot types that are approved as nontoxic for waterfowl hunting in the U.S. are the following.
Approved shot type : Composition by weight
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bismuth-tin: 97% bismuth and 3% tin
iron (steel): iron and carbon
iron-tungsten: tungsten with ≥1% iron
iron-tungsten-nickel: ≥1% iron, with tungsten, up to 40% nickel:
tungsten-bronze: 51.1% tungsten, 44.4%%copper, 3.9% tin, & 0.6% iron
tungsten-iron-copper-nickel: 40-76% tungsten, 10-37% iron, 9-16% copper, & 5-7% nickel
tungsten-matrix: 95.9% tungsten and 4.1% polymer
tungsten-polymer: 95.5% tungsten and 4.5% Nylon 6 or 11
tungsten-tin-iron: tungsten and tin and ≥1% iron
tungsten-tin-bismuth: tungsten, tin, and bismuth
tungsten-tin-iron-nickel: 65% tungsten, 21.8% tin, 10.4% iron, & 2.8% nickel
* Coatings of copper, nickel, tin, zinc, zinc chloride, and zinc chrome on approved nontoxic shot types also are approved.
