Migratory birds on which open seasons are prescribed in this part may be taken by any method except those prohibited in this section. No persons shall take migratory game birds:
Approved shot type* | Percent composition by weight | Field testing device** |
Bismuth-tin | 97 bismuth, and 3 tin | Hot Shot®*** |
Iron (steel) | iron and carbon | Magnet or Hot Shot®. |
Iron-tungsten | any proportion of tungsten, and [GREATER THAN EQUAL TO]1 iron | Magnet or Hot Shot®. |
Iron-tungsten-nickel | [GREATER THAN EQUAL TO]1 iron, any proportion of tungsten, and up to 40 nickel | Magnet or Hot Shot®. |
Copper-clad iron | 84 to 56.59 iron core, with copper cladding up to 44.1 of the shot mass | Magnet or Hot Shot® |
Corrosion-inhibited copper | [GREATER THAN EQUAL TO]99.9 copper with benzotriazole and thermoplastic fluorescent powder coatings | Ultraviolet Light. |
Tungsten-bronze | 51.1 tungsten, 44.4 copper, 3.9 tin, and 0.6 iron, or 60 tungsten, 35.1 copper, 3.9 tin, and 1 iron | Rare Earth Magnet. |
Tungsten-iron-copper-nickel | 40-76 tungsten, 10-37 iron, 9-16 copper, and 5-7 nickel | Hot Shot® or Rare Earth Magnet. |
Tungsten-matrix | 95.9 tungsten, 4.1 polymer | Hot Shot®. |
Tungsten-polymer | 95.5 tungsten, 4.5 Nylon 6 or 11 | Hot Shot®. |
Tungsten-tin-iron | any proportions of tungsten and tin, and [GREATER THAN EQUAL TO]1 iron | Magnet or Hot Shot®. |
Tungsten-tin-bismuth | any proportions of tungsten, tin, and bismuth | Rare Earth Magnet. |
Tungsten-tin-iron-nickel | 65 tungsten, 21.8 tin, 10.4 iron, and 2.8 nickel | Magnet. |
Tungsten-iron-polymer | 41.5-95.2 tungsten, 1.5-52.0 iron, and 3.5-8.0 fluoropolymer | Rare Earth Magnet or Hot Shot®. |
* Coatings of copper, nickel, tin, zinc, zinc chloride, zinc chrome, fluoropolymers, and fluorescent thermoplastic on approved nontoxic shot types also are approved.
** The information in the "Field Testing Device" column is strictly informational, not regulatory.
*** The "HOT*SHOT" field testing device is from Stream Systems of Concord, CA.
50 C.F.R. §20.21