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Light to no primer strike from 390

Discussion in 'Shooting Related Threads' started by rhymeswithorange, Jul 8, 2009.

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  1. rhymeswithorange

    rhymeswithorange Member

    Joined:
    Aug 20, 2008
    Messages:
    745
    Location:
    Northern Illinois
    I have a Beretta 390 which for the first time, after maybe 20k rounds, has started to either slightly or not at all strike the primer. Any thoughts on how to troubleshoot? Thanks in advance.
     
  2. phirel

    phirel TS Member

    Joined:
    Jan 29, 1998
    Messages:
    9,556
    First, check the firing pin. They break sometimes.

    Pat Ireland
     
  3. benniesdad

    benniesdad TS Member

    Joined:
    Jan 29, 1998
    Messages:
    161
    Are you shooting reloads and primers are set too deep? Something else to check.
     
  4. drh08

    drh08 TS Member

    Joined:
    Jun 30, 2006
    Messages:
    302
    shooting gun clubs you purchased last summer?? They had some issues with that also.
     
  5. rhymeswithorange

    rhymeswithorange Member

    Joined:
    Aug 20, 2008
    Messages:
    745
    Location:
    Northern Illinois
    Damn you guys are good. Shooting Gun Clubs purchased this year, they shoot fine in my 391.
     
  6. skeeljc

    skeeljc Supporting Vendor Supporting Vendor

    Joined:
    Aug 27, 2007
    Messages:
    3,753
    Location:
    Terre Haute Indiana
    The most likely cause is a broken firing pin return spring. The 390 has an inertia firing pin. The firing pin must retract fully or it will not have enough inertia to do its job. Just remove the breach block and examine the spring arounf the firing pin. To replace it you need to remove the retaining pin which is staked in place. Just drive the pin out and be sure to re-stake it after replacing it.

    If the firing pin return spring appears o.k it could have lost its power and taken a set.

    The other thing to check is the locking block that locks the breach block in the barrel hood. If the locking block is cracked it may not be locking up completely and this can cause a light firing pin hit.

    Jim Skeel
     
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