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53-OR-281
The 53-OR-281 (53-ОР-281) is a high explosive incendiary tracer (HEI-T) projectile. The 53-OR-281 projectile is normally found marked up with its short form designation of OR-281 (ОР-281), and not its full GAU (later GRAU) index code The 53-OR-281 projectile is part of the 53-UOR-281 (53-ОБР-28У) round, which is normally shortened to UOR-281 (УОР-281). The round also includes the 54-Zh-281 (54-Ж-281) charge system (case, charge and primer)....
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