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Originally Posted by jessipo1
I was wondering if there's an explanation for this: when I watch videos of tracers during a firefight, it seems like some are green and some are red and some are yellow. Is that because of the bullet or is that something that the video technology does to differentiate the bullets from each other, ie our bullets are green and the enemy's are red, etc.? Or is there some other explanation? Sorry if this is a really dumb question, but I figured if anyone would know it would be you guys....
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Tracers (bright, subdued and dim) are constructed with a hollow base filled with a pyrotechnic (usually phosphorus or magnesium). U.S./NATO ammunition usually has a mixture of strontium salts and a metal fuel such as magnesium; this results in the bright red light. Most ammunition for Russian and Chinese weapons generate green light (from the use of barium salts). As an old military adage puts it: “tracers work both ways.”