Short Actions L46 bolt guide

Discussion in 'Sako Short Actions' started by stonecreek, Jun 30, 2020.

  1. stonecreek

    stonecreek SCC Secretary Forum Owner SCC Board Member

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    Mark it down to carelessness, but I managed to break the snap ring which holds the bolt guide in place on an early L46. If anyone knows of a source for a replacement snap ring I would be exceedingly grateful.


    However, the bolt seems to work just fine without the bolt guide. So far as I can see, the primary function of the bolt guide is not to actually guide the bolt (keep it from binding, which it may help with), but to serve as a block for any gas escaping the action from a failed primer or case. Am I mistaken in this observation?
     
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  2. FLT

    FLT Active Member

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    I don’t think you are, I think that’s the primary function.
     
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  3. Furdown

    Furdown Active Member

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    I have a 579 bolt with broken guide ring that I was able to fabricate a new one for out of 22 guage stainless steel. Took a few tries to get one made just the right size but seems to work well. I do agree that the guide is mainly for safety from escaping gases
     
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  4. kevinlg

    kevinlg Well-Known Member

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    Say it aint so, Stoney.....!!

    How'd you manage that?!
     
    Last edited: Jul 3, 2020
  5. stonecreek

    stonecreek SCC Secretary Forum Owner SCC Board Member

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    Too embarrassed to say. :(
     
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  6. paulsonconstruction

    paulsonconstruction Sako-addicted

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    I don't know for certain whether the intent of the "bolt guide" was to guide the bolt & prevent binding while cycling or to "block" gas/debris from a blown primer or case failure or both. The theory that it provides protection from escaped chamber gases/debris makes me wonder why the left bolt lug raceway was left, by design, unobstructed to any gas/debris flow should a primer or case fail. I think the fact that it is called a "bolt guide" is more indicative of it's function than any secondary safety function it may have for protection against primer/case failure & the associated gas/debris flow, as any blockage it would provide on the right side would be offset by the blast in your face from the left side. Or am I missing something?
     
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  7. Furdown

    Furdown Active Member

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    Interesting I was just thinking about that last nite about the left lug raceway being left open so I got out one of my rifles and looking at the action with bolt closed, the left lug raceway cavity looks pretty well sealed off between the bolt body and receiver, where on the right side, if the bolt guide was not there, it would leave a big opening for a lot of gas to escape. Just my observation maybe right maybe wrong
     
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  8. P04R

    P04R Well-Known Member

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    I think it's the same ring as in L461.

    To those wondering about gasses escaping towards the shooter there is this big round shield looking bit on the bolt body at the base of the bolt handle that blocks off the locking lug ways in the receiver. On L46 it is smaller, but it was made larger on the L461 and continued through -91 series to model 75. This safety feature was discontinued along many others on the model 85.
     
  9. stonecreek

    stonecreek SCC Secretary Forum Owner SCC Board Member

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    The left side of the receiver ring has the gas vent hole which supposedly helps handle gas that might otherwise come down the left bolt raceway. Which begs the question, why not also have a gas vent hole on the right hand side of the receiver ring? Lots of actions have vent holes on the left, but offhand I can't think of any with vents on the right.
     

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