An extruded form of smokeless powder formed by forcing the dough-like nitrocellulose composition through a die of specific dimensions and cutting it into particles of specific length. The length normally equals or exceeds the diameter. Most, but not all, examples will have a central perforation and will possess fairly uniform dimensions of length and diameter. Some extruded tubular powder has more than one perforation running its length. The IMR canister powders are all typical examples. Some non-United States specimens, however, may have their ends cut on a bias and therefore permit further distinction.
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