Discussion » Questions » Math » Since the 9 milimeter bullet is so popular in USA why not just convert to total metric system altogether?
Kittigate

Since the 9 milimeter bullet is so popular in USA why not just convert to total metric system altogether?

Posted - December 28, 2021
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Responses


  • 13277
    One doesn't follow from the other. And no single type of bullet is that popular.
      December 28, 2021 3:25 PM MST
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  • 44603
    You didn't correct his spelling. Have you given up?
      December 28, 2021 3:40 PM MST
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  • 13277
    I left you a few crumbs.
      December 28, 2021 3:46 PM MST
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  • 44603
    I only correct you and that other guy. You know...the Marine. Canadians get to do what they want.
      December 28, 2021 3:49 PM MST
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  • 13277
    Canadians are beyond help, eh.
      December 28, 2021 3:52 PM MST
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  • 13395
    Ha ha ha... That made me laugh till I plotzed!
      December 28, 2021 3:58 PM MST
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  • 44603
    Oh, and now you're Jewish, already.
      December 29, 2021 8:07 AM MST
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  • 13395
    That was from some of Dave Barry's humor stuff.
      December 29, 2021 9:35 AM MST
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  • 44603
    I haven't heard that name in a while. Funny guy.
      January 12, 2022 8:34 AM MST
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  • 13395
    Yes, fer sure.. his column used to appear in the Winnipeg daily when I was living in Manitoba. One time he made a joke about Manitoba's population being a total of about 6 people so I wrote him telling him our population is more like 22 million people and something about our snow and stuff. He did reply back to me and some way or another I managed to lose that reply over time. Was about 1980 or so.
      January 12, 2022 9:43 PM MST
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  • 13395
    That was just a bit of humor I saw on the internet recently.
      December 28, 2021 3:49 PM MST
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  • 34251
    Actually, the most commonly purchased ammo size is the .22LR followed by 9mm. 
      January 9, 2022 7:24 PM MST
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  • 53504

     

      (Comma after the abbreviation “USA”.)

      December 28, 2021 5:06 PM MST
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  • 34251
    Never gonna happen. 
      January 9, 2022 7:25 PM MST
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  • 2999
    The metric system is based on 10's....too difficult apparently. 
      January 9, 2022 7:40 PM MST
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  • 5451
    It would cost too much.  We need to waste that money on less useful things.
      January 9, 2022 8:19 PM MST
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  • 3719
    It is a bit of an oddity that small-arms tend to be of mm bores, but artillery in inch-sizes; but it probably reflects where they are made.

    Anyway, the USA is probably a lot more metrificated than you might think!

    Scientists and many professional engineers in the USA already do use the metric system, especially if working on collaborative projects. In fact science and most engineering now uses the SI development of the Metric System.

    Almost any manufactured item you import into the USA will have been made to metric dimensions even if specified in inch units to special order. Buy anything mechanical, such as vehicle, made elsewhere in the world and you will need metric, not UNC/UNF, fractional-inch, spanners to service it.

    I read something recently that surprised me - that the Jan 1st 1919 edition of the Model Engineer magazine reported the US Government had received over 58,000 petitions regarding adopting the Metric System - and only 426 were against it! (The UK started going metric officially, in the 1970s.)
      January 11, 2022 3:52 PM MST
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  • 44603
    It sucks that I have to buy both SAE and metric tools when doing auto repairs.
      January 12, 2022 8:37 AM MST
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  • 3719
    I expect as time goes on you'll be keeping the SAE tools only for the vintage vehicle restoring!

    Years ago I worked for an electronics company that did a lot of sub-contract work for the UK's MoD, principally Royal Navy equipment. As a result of NATO many of these items had a right mixture of fasteners: UNC/UNF, BA and sometimes ISO-Metric! At the same time, probably due to UK companies being bought up right, left and centre by the USA, British-built cars started to use UNC & UNF fasteners.

    At least the SAE and the equivalent British Standards systems are consistent within themselves. (BA is an oddity in being a metric system based on an old Swiss thread series, and sized by geometrical progression; but specified in inch dimensions in the reference books.)

    One significant difference apart of course from the thread details is that the SAE and ISO-M spanners are all stamped with the hexagon size, whilst the BSW/BSF and BA ones bear the size of the fastener itself.

    The standard ISO-metric fastenings dimensions don't really follow a coherent series and a lot of fasteners are made with hexagons that are not the normal A/F sizes for the standard threads they carry! And as I expect you've found, car manufacturers tend to like to use unusual sizes anyway.
      February 7, 2022 4:06 PM MST
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  • 44603
    Quite confusing. I wish I had a vintage car to work on. I used to do so.
      February 9, 2022 10:16 AM MST
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  • 44603
    Don Johnson use a 10mm on 'Miami Vice'.
      January 12, 2022 8:38 AM MST
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  • 53504

     

      ”use”?

      January 12, 2022 2:01 PM MST
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