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cartridge

A cartridge or a round is a type of pre-assembled firearm ammunition packaging a projectile (bullet, shot, or slug), a propellant substance (usually either smokeless powder or black powder) and an ignition device (primer) within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of a breechloading gun, for the practical purpose of convenient transportation and handling during shooting. Although in popular usage the term "bullet" is often informally used to refer to a complete cartridge, it is correctly used only to refer to the projectile.
Cartridges can be categorized by the type of their primers – a small charge of an impact- or electric-sensitive chemical mixture that is located: at the center of the case head (centerfire); inside the rim (rimfire); inside the walls on the fold of the case base that is shaped like a cup (cupfire, now obsolete); in a sideways projection that is shaped like a pin (pinfire, now obsolete); or a lip (lipfire, now obsolete); or in a small nipple-like bulge at the case base (teat-fire, now obsolete). Only the centerfire and rimfire survived mainstream usage today.
Military and commercial producers continue to pursue the goal of caseless ammunition. Some artillery ammunition uses the same cartridge concept as found in small arms. In other cases, the artillery shell is separate from the propellant charge.
A cartridge without a projectile is called a blank; one that is completely inert (contains no active primer and no propellant) is called a dummy; one that failed to ignite and shoot off the projectile is called a dud; and one that ignited but failed to sufficiently push the projectile out of the barrel is called a squib.

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  1. B

    Anyone recognise this cartridge and shower model

    Hi just moved into house and to save a completely new shower anyone recognize the cartridge and shower model so i can find a replacement cheers
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  2. L

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  3. D

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  4. S

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  5. J

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  6. V

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  7. V

    Shower cartridge removal help.

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  8. WornBadly

    Which tool would remove this mixer tap cartridge?

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  9. I

    Can anyone help identify this shower cartridge?

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  10. B

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  11. L

    Dorf mixer tap still leaking after new cartridge

    I have a Dorf mixer tap that is leaking from the body. A plumber has replaced the cartridge but it is still leaking when the tap is turned off. Do these taps have other parts that need replacing? Suggestions would be most welcome. Regards, Lyn
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  12. B

    Tap still dripping after replacing cartridge

    Hello, I changed the hot tap cartridge on my quarter turn tap about 1 year ago. I changed the discs and washer of the same hot tap cartridge in June of this year but it is still dripping. Is there anything else I can try do stop it dripping? Any help would be much appreciated
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  13. P

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  14. F

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  15. D

    How do I take out cartridge from mixer tap?

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  16. B

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  17. S

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  18. A

    Unknown Thermostatic Cartridge

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  19. K

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  20. P

    Single lever monobloc mixer tap with new cartridge is still leaking (not dripping from spout).

    The tap was leaking from its body (under the 2-way swivel handle; where you access the big brass nut and the cartridge) when turned ON more that a little bit. I've replaced the cartridge and it leaks in same way. It doesn't drip from the spout nor leak when turned off. So, as far as I can see...
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