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391 gas exhaust valve spring

Discussion in 'Uncategorized Threads' started by slickhead, Oct 5, 2008.

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  1. slickhead

    slickhead Active Member

    Joined:
    Jan 29, 1998
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    Location:
    West Tenn.
    Can someone tell me are there different spring available for 391 exhaust valves, and also the gas pistons?
     
  2. Tron

    Tron Supporting Vendor Supporting Vendor

    Joined:
    Jan 29, 1998
    Messages:
    6,668
    Cole's gunsmithing sells the "Blue" spring, which is softer and designed for use of heavy loads and the "Red" spring, which is stiffer and doesn't allow as much gas to vent off for lighter loads. Also, you can get the "unbreakable" piston from Angleport.
     
  3. 635 G

    635 G Well-Known Member

    Joined:
    Jun 30, 2008
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    6,222
    Cole guns sells a gas valve kit, for trap shooting they are
    great, no need to have springs in a trap gun that can handle a 3" magnum, also Beetta has come out with a new self cleaning piston, the way to go.

    Lou
     
  4. Dickgshot

    Dickgshot Well-Known Member

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    Jan 29, 1998
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    There is very little difference between the factory spring, red, and blue spring. Save your money. The gas valve compensates pretty well.
     
  5. Shady Creek

    Shady Creek TS Member

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    Feb 5, 2006
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    dickgtax,42 lb factory spring, lite Cole spring 26 lb, very little difference, it sure has me fooled. GOOD LUCK
     
  6. Tron

    Tron Supporting Vendor Supporting Vendor

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    dickgtax, yes, for general use, I agree with you. The "Red" spring made a night and day difference when I was shooting nothing but 7/8oz loads for Skeet. If I were to use 3" mags for goose hunting, I would no doubt install the Blue spring.....it's much easier on the buffer and receiver.
     
  7. Dickgshot

    Dickgshot Well-Known Member

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    Jan 29, 1998
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    I wonder if the springs are only effective at the extreme ends of very light and very heavy. I say that because I put in a red spring and then shot the same
    3 dram 1 1/8 loads I had been shooting, and they kicked out the same distance.
    That surprised me. I read a post from someone else that had the same experience.
     
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