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Thread: Pressure / barrel speeds?

  1. #16
    Sending it Gibo's Avatar
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    Quote Originally Posted by Smiddy View Post
    jeues christ that was a joke
    Ha ha got ya
    Smiddy likes this.

  2. #17
    Member Pengy's Avatar
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    Haha. Probably not a good subject to joke on if you don't use emoticons
    Forgotmaboltagain+1

  3. #18
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    another sign is the roundness of your primer after being fired, compare it to a unfired round - it should look the same and not flat
    Pengy likes this.
    Dont waste your time chasing every last fps, it doesnt matter in the real world, it wont make a difference, all it will do is cause head aches and frustrations. And dont listen to silly old cunts

  4. #19
    Sending it Gibo's Avatar
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    Quote Originally Posted by Smiddy View Post
    the first sign of pressure is usually sticky bolt lift, this is when you feel resistance when lifting the handle to extract the round
    Cheers, i have gone .4 over max so far, started way back and still yet to length trim. Brass doesnt budge

  5. #20
    Gone But Not Forgotten Toby's Avatar
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    @P38 Im sure it was him who posted pics of flat and crated primers
    VIVA LA HOWA

  6. #21
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    other signs a stamping on the brass, this is where the brass has "flowed" around either your ejector or maybe extractor port - you will see it on the case head - it will be shinny
    Dont waste your time chasing every last fps, it doesnt matter in the real world, it wont make a difference, all it will do is cause head aches and frustrations. And dont listen to silly old cunts

  7. #22
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    i usually start 1 gr below max and work up in 1gr increments untill i hit pressure then i know where it is and can back off from there in .5gr lots
    Dont waste your time chasing every last fps, it doesnt matter in the real world, it wont make a difference, all it will do is cause head aches and frustrations. And dont listen to silly old cunts

  8. #23
    Sending it Gibo's Avatar
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    Quote Originally Posted by Smiddy View Post
    other signs a stamping on the brass, this is where the brass has "flowed" around either your ejector or maybe extractor port - you will see it on the case head - it will be shinny
    Seen that once or twice but happens with my mild loads now and then. Round smooth mark stamped on the head. Very lightly though snd not always??

  9. #24
    Terminator Products Kiwi Greg's Avatar
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    Quote Originally Posted by veitnamcam View Post
    Slower twist should be faster as not using up as much energy to rotate mass.
    It is but by bugger, all according to Litzs new book, typically well under normal ES.
    veitnamcam likes this.
    Contact me for reloading components, brass, projectiles, powder, primers, etc

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  10. #25
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    Ok when your brass does this
    This wasn't my loading....it came with a gun I brought.....
    Guy said they where all sweet, he seemed two no his stuff,
    the first few where all fine
    I really spat the dummy bolt lift was REALLY hard. I was glad it was in a Sako, a lesser action the results may have been a very different......
    Lesson.....never use loads your given
    Let's use this as a worse case example
    P38, veitnamcam, Smiddy and 2 others like this.

  11. #26
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    Quote Originally Posted by Gibo View Post
    Seen that once or twice but happens with my mild loads now and then. Round smooth mark stamped on the head. Very lightly though snd not always??
    can be cause by brass being abit out of spec for your chamber, if bolt lift is good and primer ok then not to worry about
    its best to do your higher end loads with brass already fired in your chamber
    Dont waste your time chasing every last fps, it doesnt matter in the real world, it wont make a difference, all it will do is cause head aches and frustrations. And dont listen to silly old cunts

  12. #27
    Sending it Gibo's Avatar
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    Quote Originally Posted by Smiddy View Post
    another sign is the roundness of your primer after being fired, compare it to a unfired round - it should look the same and not flat
    Yip ALL primers have still had the round edges like unfired. Even the ones with a mild head mark. Are ejector marks from the hooky thing due to tightness and being hard to pull out?

  13. #28
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    Quote Originally Posted by Smiddy View Post
    can be cause by brass being abit out of spec for your chamber, if bolt lift is good and primer ok then not to worry about
    its best to do your higher end loads with brass already fired in your chamber
    Yip all full length sized unfired in mine is at my mild go to

  14. #29
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    Quote Originally Posted by BRADS View Post
    Ok when your brass does this
    This wasn't my loading....it came with a gun I brought.....
    Guy said they where all sweet, he seemed two no his stuff,
    the first few where all fine
    I really spat the dummy bolt lift was REALLY hard. I was glad it was in a Sako, a lesser action the results may have been a very different......
    Lesson.....never use loads your given
    Let's use this as a worse case example
    Nasty

  15. #30
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by Smiddy View Post
    when you blow a primer............. you know you shouldn't have bought those cheap Winchester ones off trade me
    Fixed
    Smiddy and BRADS like this.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

    308Win One chambering to rule them all.

 

 

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