Mini14 Double Fires??

Discussion in 'Mini-14 Forum' started by RiverRat68, May 15, 2012.

  1. RiverRat68

    RiverRat68 RiverRat68 Supporter

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    I have a 580 series Mini 14 that I have probably fired 4,000 to 4,500 rounds through. I have had no major malfunctions other than one LC case failure. I reload all of my ammo using LC brass and RORG brass for my hunting loads. I have been working on a new load using a 64 gr. bonded bullet. Several weeks ago I increased my powder charge from 25 gr. to 25.5 gr. Two weeks ago, I fired 200 rounds at 50,100, and 200 yards with no problems. When I cleaned my Mini 14 I removed my scope and went to the local gun club to fine tune it after reinstalling the scope. I set my target stands at 50 and 100 yards. Shooting from a bench rest I fired the first, second and third rounds, when I fired the 4th round, it fired 2 rounds instantly, (as in full auto). I removed the magazine opened the breech and visually inspected it, noting nothing unusual. I inserted another 20 round magazine (each had 5 rounds) and fired the first, second and when I fired the third round it double fired again. I continued shooting without further incident. I shot a total of 150 rounds yesterday. This Mini 14 has been a sweetheart for me. Normally, If I set up two target stands at 100 yards, five targets on each and 5 rounds to each target, I'll have 3 or 4 targets with MOA or sub MOA. It all depends on how shakey my 74 year old hands are. Any comments or suggestions as to what may have caused this will be greatly appreciated .
     
  2. steve4102

    steve4102 New Member

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    Check the Key (tail) on the firing pin. Also and more likely check out the trigger group. It could be worn or dirty or both.

    Also, make sure you primers are set below flush.
     

  3. masterPsmith

    masterPsmith New Member

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    You may also have experienced a couple of unintentional bump fires. The Mini-14, with a little practice, is very easy to bump fire. It would take a combination of a few things for this to happen shooting from the bench, such as almost no grip or no grip while pulling the trigger to the rear in combination with no or little shoulder contact with the stock and a slight forward hold or push with your support hand..

    In any case, check your primer seating and dissasemble, clean and inspect your trigger group. If unsure, take it to your local smith to be safe. A rifle that doubles on you at the range can cause you legal problems also.


    Jim..
     
  4. RiverRat68

    RiverRat68 RiverRat68 Supporter

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    Thanks, Steve4102 and masterPsmith, for your feedback. I'm inclined to with the bump fire theroy. I had an email waiting for me when I got home from work, from the GunDoc., who has worked on my Mini 14 in the past. He leans to the bump fire theroy also. I always make sure my primers are seated below the base, and I'm confident that this was not an issue with this double fire. I'm going to tear it down this evening and check everything I can.
    Again,my thanks. I'll keep you posted if I find anything mechanical.