PPC bolt face diameter

Discussion in 'Gun Project Questions & Gunsmithing' started by Nightraider, Feb 14, 2020 at 4:15 PM.

  1. Nightraider

    Nightraider

    Joined:
    Sep 19, 2018
    Messages:
    227
    I've built a batch of PPC bolts, that don't want to eject. Chamfer is good, extractor is good, so I'm thinking bolt face diameter. They're currently .447", but they seem to be a little sticky on the ejection, but eject freely with the bolt held in the vise.
     
  2. butchlambert

    butchlambert Site $$ Sponsor

    Joined:
    Jan 18, 2005
    Messages:
    7,277
  3. geo.ulrich

    geo.ulrich beware of owner Gold $$ Contributor

    Joined:
    Nov 16, 2009
    Messages:
    536
    is the ejector free and not sticky or bound up, did you remove any spring coils, did you face off bolt face ???
     
  4. Nightraider

    Nightraider

    Joined:
    Sep 19, 2018
    Messages:
    227
    Ejector is free with Wolff extra power spring. Bolt was faced, bushed, chamfered. Maybe a little more chamfer might give it the pivot it needs. 20200122_125729.jpg
     
  5. geo.ulrich

    geo.ulrich beware of owner Gold $$ Contributor

    Joined:
    Nov 16, 2009
    Messages:
    536
    looks good, yes a bigger chamfer would help. also look close at the bottom of c'bore there is a small step. it should clear radius on case but I would double check to make sure its not grabbing....
     
    Ramblerman likes this.
  6. waltkrafft

    waltkrafft Gold $$ Contributor

    Joined:
    Jan 6, 2013
    Messages:
    241
    I bought an action from Jim Borden for a 223 build. Asked him to provide a second bolt for the ppc. When it arrived the second bolt has a .480 face. He says he does them all that way.
     
    gunsandgunsmithing likes this.
  7. Alex Wheeler

    Alex Wheeler Gold $$ Contributor

    Joined:
    Feb 5, 2011
    Messages:
    6,151
    From the pick Id say you need more chamfer.
     
    rickiesrevenge and Nightraider like this.
  8. geo.ulrich

    geo.ulrich beware of owner Gold $$ Contributor

    Joined:
    Nov 16, 2009
    Messages:
    536
    Jim uses the multi face .308/ ppc
     
    gunsandgunsmithing likes this.
  9. Chris Mackey

    Chris Mackey Gold $$ Contributor

    Joined:
    Jan 1, 2008
    Messages:
    16
    I don’t have an action in front of me, but BAT says .455 for ppc only and .485 for 308. Hope that helps
    Thanks
    Chris
     
    Nightraider likes this.
  10. luckyshot52

    luckyshot52 Gold $$ Contributor

    Joined:
    Dec 21, 2011
    Messages:
    217
    What are using for extractor?
     
  11. Nightraider

    Nightraider

    Joined:
    Sep 19, 2018
    Messages:
    227
    Mini m16
     
  12. Roeder

    Roeder Silver $$ Contributor

    Joined:
    Mar 22, 2014
    Messages:
    171
    Back in the day, when people converted Remingtons to PPC for Bench rest by installing a Sako extractor; the front of the bolt was usually shortened so that the recess was only about .125 deep. This allowed more support to the case which was needed because the old .220 Russian had a thinner case head than other cartridges. This may not relate to your issue because there are a number of things that can affect ejection. In any case, more chamfer is probably needed.
     
    Last edited: Feb 15, 2020 at 11:03 AM
  13. Nightraider

    Nightraider

    Joined:
    Sep 19, 2018
    Messages:
    227
    I had thought about that as well, but I'm thinking it's a chamfer issue. It'll eject a loaded round(with bullet) but an empty just doesn't have the weight to overcome that chamfer, that's what I'm thinking.
     

Share This Page