My first 6BRA arrives tomorrow

Discussion in '6BR, 6BR Improved & Wildcats' started by Nature Boy, May 31, 2018.

  1. Alex Wheeler

    Alex Wheeler Gold $$ Contributor

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    A trigger hanger is the easiest way to increase pin fall. Pin protrusion is different.
     
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  2. mikeeg02

    mikeeg02 Silver $$ Contributor

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    Pin fall is the firing pins distance traveled from cocked to fired.

    Firing pin protrusion is amount sticking out of the bolt after fired. As Alex said.

    Edit: firing pin protrusion should be no where near .240 or .250 lol. More like .060. Depending on preference and spring rate.
     
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  3. Rushty

    Rushty Gold $$ Contributor

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    Ok..so increasing pin fall gives the pin more striking power against the primer because it’s being cocked further back?? But pin protrusion stays the same?
     
  4. mikeeg02

    mikeeg02 Silver $$ Contributor

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    Yessir!
     
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  5. Evlshnngns

    Evlshnngns Silver $$ Contributor

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    My ackley Swede had 4 misfires on lapua brass using cream of wheat. All four brass measured short. Tight neck and .020 jam on a bullet got it done.

    The target on the bench looked good! Keep us updated.
     
  6. mikeeg02

    mikeeg02 Silver $$ Contributor

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    @Nature Boy

    Did you get a chance to pull your bullets? Or get anything figured out? I am interested to see what happened/fixes your issue.
     
  7. 6.5creed

    6.5creed Gold $$ Contributor

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    I have to jam my BRA to +.020 when fireforming and still get a few ftf's, drop the pin on them 3 times nothing, take them out then rechambered and they went.
     
  8. Nature Boy

    Nature Boy

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    I’ve been out of town all week. I’ll have some info when I get to the range this weekend
     
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  9. mikeeg02

    mikeeg02 Silver $$ Contributor

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    That d@mn work thing. Always getting in the way of our hobbies. Lol
     
  10. Nature Boy

    Nature Boy

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    If this crap was free I would have turned in my retirement notice on Monday
     
  11. Nature Boy

    Nature Boy

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    Update

    I beat the bullets out of the 22 rounds that didn’t fire (all had powder, as I knew they would) and loaded 10 back up with the same load, including the #450 primers, but jammed the bullets 0.010 into the lands this time.

    On the second go round 2 out of 10 failed to ignite. 20% is an improvement over 44%, but not good enough to use them for fire forming. I loaded more fire forming rounds with Fed 205m, CCI #400 and Rem 7 1/2 primers and all 30 of these fired.

    I’ll try the #450s again with fire formed brass and see if the issue with these persists
     
  12. Rushty

    Rushty Gold $$ Contributor

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    I’ve found that the 450s have 100% strike rate after cases are ff..
     
  13. R.Morehouse

    R.Morehouse Gold $$ Contributor

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    I used the Fed GM205M yesterday doing my 1st ladder at 300yds with a BRA with H4895 103VT's 15in. 30.1 to 30.5 44fps ES and all 5 shots stayed in just over 1/2" in a light breeze with 1/4" vert. I still have to play with seating and the Ezelle tuner. That will be done next weekend at Williamsport. What i am getting at is the Fed primers will be fine if they are going BANG for you.

    Regards
    Rick

    ps: I FFed 100 pieces with the mentioned primers and all went BANG......
     
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