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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    Data on elements' abundance in Earth's crust is added for comparison. As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of ...

  3. Rapaport Diamond Report - Wikipedia

    en.wikipedia.org/wiki/Rapaport_Diamond_Report

    Each grid has the clarity options on the horizontal line and the color options on the vertical line. In order to calculate the price of a diamond according to the Rapaport Price List, you need to know the size, color and clarity of the diamond. The price listed based on this information is in hundreds of dollars per carat. [3]

  4. Cartridge (firearms) - Wikipedia

    en.wikipedia.org/wiki/Cartridge_(firearms)

    Baton round: a generally non-lethal projectile fired from a riot gun. Bullets Armor-piercing (AP): A hard bullet made from steel or tungsten alloys in a pointed shape typically covered by a thin layer of lead and or a copper or brass jacket. The lead and jacket are intended to prevent barrel wear from the hard-core materials.

  5. 10mm Auto - Wikipedia

    en.wikipedia.org/wiki/10mm_Auto

    The relatively high price of the Bren Ten compared to other pistols of the time (manufacturer's suggested retail price was $500 in 1986, the equivalent of $1,200 United States dollars in 2021 [15]) was another factor in its demise, and the company was eventually forced to declare bankruptcy, ceasing operations in 1986 after only three years of ...

  6. Green bullet - Wikipedia

    en.wikipedia.org/wiki/Green_bullet

    Since lead is a very dense material, bullets made of inexpensive, non-toxic materials will be lighter than bullets made of lead unless bullet length is increased. Inferior external ballistics cause lighter bullets to be less effective against distant targets. Increasing bullet length may require a faster rifling twist to maintain stability.

  7. 5.56×45mm NATO - Wikipedia

    en.wikipedia.org/wiki/5.56×45mm_NATO

    For general issue, the U.S. Army adopted the M855A1 round in 2010 to replace the M855. The primary reason was pressure to use non-lead bullets. The lead slug is replaced by a copper alloy slug in a reverse-drawn jacket, with a hardened steel penetrator extending beyond the jacket, reducing lead contamination to the environment.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Bullet - Wikipedia

    en.wikipedia.org/wiki/Bullet

    This worked well for low-speed bullets, fired at velocities of less than 450 m/s (1,475 ft/s). For slightly higher-speed bullets fired in modern firearms, a harder alloy of lead and tin or typesetter's lead (used to mold linotype) works very well. For even higher-speed bullet use, jacketed lead bullets are used.