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Thread: Forgotten Mo's case length gauge

  1. #1
    Boolit Buddy pete501's Avatar
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    Forgotten Mo's case length gauge

    Found this in one of my tool boxes while cleaning today. Stashed away years ago when I didn't reload 308.

    I'm excited to be able to use it now that I'm reloading 308.

    Sorry the photo is sideways.
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  2. #2
    Boolit Grand Master



    M-Tecs's Avatar
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    I love them. I have several but none of mine have a blued top.
    2nd Amendment of the U.S. Constitution. - "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

    "Before you argue with someone, ask yourself, is that person even mentally mature enough to grasp the concept of different perspectives? Because if not, there’s absolutely no point."
    – Amber Veal

    "The Highest form of ignorance is when your reject something you don't know anything about".
    - Wayne Dyer

  3. #3
    I have 3, I'm pretty sure they predate the RCBS Precision Mic by quite a bit. With these you can load ammo that actually fits your chamber.

  4. #4
    Boolit Grand Master



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    Quote Originally Posted by relics6165 View Post
    I have 3, I'm pretty sure they predate the RCBS Precision Mic by quite a bit. With these you can load ammo that actually fits your chamber.
    Yep Mo was the first of this type that I am aware of. I never heard if RCBS paid Mo for the design or if they just copied it.
    2nd Amendment of the U.S. Constitution. - "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

    "Before you argue with someone, ask yourself, is that person even mentally mature enough to grasp the concept of different perspectives? Because if not, there’s absolutely no point."
    – Amber Veal

    "The Highest form of ignorance is when your reject something you don't know anything about".
    - Wayne Dyer

  5. #5
    Boolit Master

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    Mo was a high master high power shooter. He won the Palma match at Perry and was on the US Palma team for several years. He ran a nice shop in Connecticut specializing in competitive shooting supplies, MSC, Mo's Competitor Supplies.

  6. #6
    Boolit Master
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    Cool....... I haven’t seen one of those in years!

  7. #7
    Boolit Buddy dddddmorgan's Avatar
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    Can someone explain how this works? I use the modified cases with the sliding pushrod that allow me to seat bullets to max length for a given rifle.

    This looks like a much fancier (read precise) setup.
    If your mind goes blank don't forget to turn off the sound....

  8. #8
    Boolit Grand Master



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    Quote Originally Posted by reverenddan View Post
    Can someone explain how this works? I use the modified cases with the sliding pushrod that allow me to seat bullets to max length for a given rifle.

    This looks like a much fancier (read precise) setup.
    RCBS makes the current version but it works basically the same but the RCBS doesn't have the overall length feature that Mo's had. Both the Mo's and RCBS are primarily for set shoulder bump but the RCBS does have an add bullet seating length gauge.

    https://www.personaldefenseworld.com...Size%20More%20

    http://castboolits.gunloads.com/show...-Precision-Mic
    Last edited by M-Tecs; 01-20-2021 at 01:58 PM.
    2nd Amendment of the U.S. Constitution. - "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."

    "Before you argue with someone, ask yourself, is that person even mentally mature enough to grasp the concept of different perspectives? Because if not, there’s absolutely no point."
    – Amber Veal

    "The Highest form of ignorance is when your reject something you don't know anything about".
    - Wayne Dyer

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check