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Thread: Blue Dot & reduced loads for .308?

  1. #21
    Boolit Master
    Join Date
    Feb 2006
    Kaneohe, HI
    No wonder I couldn't find it.

  2. #22
    Boolit Master
    Join Date
    Feb 2006
    Kaneohe, HI
    I use Blue dot in my M1 carbine.
    Lee custom group buy mould.
    Works great.
    I like Blue dot for a slower cast bullet powder. Burns really clean.

  3. #23
    Boolit Master madsenshooter's Avatar
    Join Date
    Jan 2006
    Upper Appalachia, SE Ohio
    Quote Originally Posted by Rocky Raab View Post
    I also write about and use Blue Dot for reduced loads. I wholeheartedly agree with Seafire's methods AND his warnings.

    Emphasis reiterated: these are NOT low-pressure loads. They approach normal maximum pressures for a given cartridge. Muzzle velocity is reduced because these loads develop less gas VOLUME, but at normal peak pressures.

    I don't worry about powder position, as I reason that normal recoil and gun cycling will shake a powder charge to even distribution in the case. Unless you are shooting at your toes, bullet velocity will be quite consistent. (If you ARE shooting at your toes, high velocity isn't required!).Primer blast isn't a spark, either. It's a potent blast that almost certainly has a "leafblower" effect inside the case - especially with a fluffy flake powder like BD.
    I've got to agree with your "leaf blower effect" Rocky. I've been using new cases and fired with Blue Dot, one can see that the highest temps are in the forward 2/3s of the case, like the majority of the powder is being blown up there by the primer before it starts to burn. Can't get the proper light to get a pic of it.

  4. #24
    Boolit Mold
    Join Date
    Jun 2009
    You might be able to find this seafire character on accurate reloading and 24 hour campfire...

    you can ask Rocky Raab... that seafire guy is not a very reputable character...

    send him an email tho, he is usually pretty good at answering them...

  5. #25
    Boolit Master Ricochet's Avatar
    Join Date
    Mar 2005
    Bristol, Tennessee, USA


    That Seafire character's kinda sneaky, too.
    "A cheerful heart is good medicine."

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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