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Help please, i am baffled?

Discussion in 'Reloading' started by EL_NinO619, Oct 25, 2010.

  1. EL_NinO619

    EL_NinO619 EX-Swage Monkey

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    I tried to load .308 rounds last night. Using my new LEE collet die on once fired brass. I resized deprimed, did all the prep work i usually do. Cases are to spec. Case neck mesaures .306.5. Throw my powder and begin to seat the Sierra 168 HPBT. Seat 6-7 bullets, then this happens.:dunno: I check my die adjustment and everything, only to get it smashing the cases worse. Before it all went bad i did have trouble getting a consistent bullet seating depth. I am baffled i have loaded thousands of .308 and never had this problem. Have never adjusted the body of the seating die because i use the breech lock press and the die has the micro adjustment knob for bullet depth. Could it have something to do with the collet die? or the die broke? or ME:whistling::steamed:. Thanks[​IMG][​IMG][​IMG]
     
  2. It looks like you are crimping before the bullet is being seated fully.
     


  3. EL_NinO619

    EL_NinO619 EX-Swage Monkey

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  4. XDRoX

    XDRoX

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  5. XDRoX

    XDRoX

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    Like DoctaGlockta said, I too have seen this with pistol, but it was because the seating/crimping die was not set correctly.

    It has to be your new die, right? Could it be sizing the case too much?
     
  6. GioaJack

    GioaJack Conifer Jack

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    Apr 14, 2009
    Conifer, CO
    Do the simple stuff first... measure your expanding button.


    Jack
     
  7. fredj338

    fredj338

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    Ok, this may sound stupid, but verify bullet diameter. It's not unusual for a manuf, even Sierra, to get the wrong size bullets in a box. If this is happening early during seating, could be the ID is too small, but doesn't sound like it. If it's happening during the end of the seating, if you are crimping, your cases may be a bit long & it's buckling the case. So check case length, make sure the mouth of the case is chamfered, then check the collet die, but I don't think that is it.
     
    Last edited: Oct 25, 2010
  8. EL_NinO619

    EL_NinO619 EX-Swage Monkey

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    can .308.5 and .309 do it. I am not expanding or crimping with the bullet seating die. all the die does is seat the bullet. and the collet die resizes the neck only
     
  9. MrOldLude

    MrOldLude

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    Jan 18, 2010
    Go back to your directions.

    Your seating die is screwed too far down. Turn the seating-depth adjustment up most of the way. Then loosen the lock nut.

    The directions will likely say something like, With the ram completely up and screw the seating die until it touches the face of the ram. Than, give it an additional 1/4 to 1/2 a turn. Tighten the lock-nut. Then reset the seating distance.
     
  10. EL_NinO619

    EL_NinO619 EX-Swage Monkey

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    I did this. Even though i have loaded a ton of rounds before with the same adjustment, i did it again to double check. Still doing it. Now the only thing i can think of is the bullets are to big .308.5-.309 or my neck sizing to .307 is to much, but i don't think so. And my collet sizing rod is .306.5[​IMG][​IMG]One on the very right is the seating die.
     
  11. fredj338

    fredj338

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    The seating die can crimp if screwed down too far & the brass needs trimming. Check that. I screw the seating die won to the shell holder, then back it off 1 full turn, minimum. This prevents any seating. As to bullet dia. a 0.309" bullet could cause buckling if the case mouth ID is on the small side, like 0.306", especially if the case mouth has no chamfer.
     
    Last edited: Oct 25, 2010
  12. EL_NinO619

    EL_NinO619 EX-Swage Monkey

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    They are chamferd, but i think i found the problem. After closer inspection of the collet die and case mouth. I found that, i guess you would call them the collet teeth, are uneven and causing one side of the case to just barley undersize. Not noticeable to the naked eye when looking at the case. Have to give Jack a call and return his die:whistling:. Used my full length die and they seated just fine. I am not having any luck right now i guess.
     
  13. WiskyT

    WiskyT Malcontent

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    North Carolina
    The collet is uneven when removed from the die, that's normal. The part that matters is the mandrel. The case mouth ID can't be any smaller than the OD of the mandrel the neck is squeezed against. I'll mic my 30-06 mandrel and see what it is to give you a number to compare to the one you're using.
     
  14. steve4102

    steve4102

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    I had a similar experience with my 300WSM Lee Collet die. It was worn out and would buckle the shoulder just a bit, then my seating die made the buckle worse. I replaced the guts and all is well.
     
  15. EL_NinO619

    EL_NinO619 EX-Swage Monkey

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    I gave LEE a call, they are sending the internals for free. As for the brass I'm out of once fired Winchester..:steamed:
     
  16. MrOldLude

    MrOldLude

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    Um, typically when something is wrong when I'm reloading, I don't keep chugging through brass hoping it will go away. How many cases did you thrash?
     
  17. EL_NinO619

    EL_NinO619 EX-Swage Monkey

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    Only 4 trying to figure out what was wrong. But thank you for your DEEP concern:dunno:
     
  18. WiskyT

    WiskyT Malcontent

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    The mandrel on my 30-06 collet die mic's a tight 0.306".
     
  19. MajorD

    MajorD

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    once fired brass you should chamfer the mouth of the case prior to loading and that should solve the problem
     
  20. dudel

    dudel

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    If you had case damage after sizing, why in the world would you continue on to seat projectiles? Don't tell us you also dumped powder in a crushed case as well?

    BTW, a seating die WILL crimp if it's set too low or the case length is too long.

    If you were having problems with seating depth; why would you adjust the sizing die? That makes no sense at all.

    If the die worked before, then it's out of adjustment or your cases are different.

    If it's the first time (for you) with this brass, make sure it's 1) chamfered 2) the necks are not thicker than the ones that worked and 3) that the brass has not work hardened. An inline seater would help.