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Thread: Notice anything different about this Bat M Action Bolt?

  1. #1
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    Notice anything different about this Bat M Action Bolt?


  2. #2
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    Quote Originally Posted by jackie schmidt View Post
    Different Shroud ??

  3. #3
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    Quote Originally Posted by C.L. Peterson View Post
    Different Shroud ??
    Bingo.

    I have had this action for several years, it has hand numerous barrels from 6BR to 284, Winchester. The current barrel is chambered in 7 MM Geramo.

    I think it has always been a shot spitter. There are some pretty astute Gunsmiths who work on the firing pin assemblies, I was ready to send it to a one who knows his way around these, but I said ďwhat the heckĒ. Iíll see if I can convert it to the time tested screw in shroud.

    The shroud itís self is a Graphite impregnated piece that Gene Bukys made years ago. I have had one on both my Farley LV and HV Score Rifle for years. Thousands of rounds through both.

    The Bat bolt had stock in it to bore out to accept a 1/2 13 tap. The back is bored to .500 to fit the body of the shroud.

    I machine the firing pin fro a Grade 8 bolt.

    The only thing I have to do now is move the trigger back, as the cocking piece that engages the trigger sear on a Remington is about .300 further back than the Bat. I will have to mill the trigger hanger slot back, and drill another tap.another 6/32 hole. I will make a custom hanger with an extended foot to catch the original forward hole.

    Everything so far has come out good.

    http://benchrest.com/attachment.php?...1&d=1595040291

    http://benchrest.com/attachment.php?...1&d=1595040329

    http://benchrest.com/attachment.php?...1&d=1595040370
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  4. #4
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    Quote Originally Posted by jackie schmidt View Post
    The only thing I have to do now is move the trigger back, as the cocking piece that engages the trigger sear on a Remington is about .300 further back than the Bat. I will have to mill the trigger hanger slot back, and drill another tap.another 6/32 hole. I will make a custom hanger with an extended foot to catch the original forward hole.

    Wouldn't that be easier to work on the cocking piece itself ?

    Cut a part of the existing "wing" and weld (Ag or Cu solder ?) another one, then mill sear place and bolt-tool notch, with a little tenon/step at the front considering the effort direction.

    Notice you can solder a wider, part then go to the mill, reference on the "original" cylindrical part and cut the soldered "wing" to the right width, centered and // to the axis.


    With regards to milling the stock as you stated, I hope you will remains in the ?laminated?stratification? hard material. Take care, you may arrived in the foam and that would do no good if you cut the "laminated skin" where stock section is already smaller. Same goes for trigger hanger rear hole.

    Olive.



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    Last edited by OliveOil; 07-18-2020 at 07:11 AM. Reason: add sketch

  5. #5
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    Iím not quite sure what you are referring to in milling the stock. That is a simple matter of using a pencil grinder to remove material so the newly positioned trigger hanger doesnít hit anything.

    What I will do is mill is the action itís self. It is a simple matter of moving the rear 6/32 mounting screw back the correct amount and then milling the pad that the trigger hanger mounts on. The trigger hanger will look just like a regular Bat except for the extended mounting tang on the front pad.

    As for making a cocking piece, I really donít have the means at my disposal to make one. Plus, by the time I got it correct and had it case hardened, I could reposition the trigger.

    I think I have all of the bases covered. There is nothing I hate worse than getting 98 percent through a project and realizing you hit a unsolvable roadblock.

  6. #6
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    Remington

    Quote Originally Posted by jackie schmidt View Post

    bolt shroud and fire control innards?

  7. #7
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    Quote Originally Posted by glp View Post
    bolt shroud and fire control innards?
    The shroud and firing pin is standard Remington, Panda, Farley etc. The front of the firing pin is Bat.

    I finished it this morning. I moved the trigger assy back .270 inch, I came out with .220 firing pin travel and 27 pounds of static spring pressure.

    Everything works great. I plan on shooting it tomorrow. One thing I noticed is when I would dry fire this rifle before, it had a real rattle. Now it is just a clean crisp snap.


    http://benchrest.com/attachment.php?...1&d=1595091446


    http://benchrest.com/attachment.php?...1&d=1595091488
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    Last edited by jackie schmidt; 07-18-2020 at 02:22 PM.

  8. #8
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    Ed, Geramo and I had a great day at the range.

    I set up at 200 yards with my standard 5 flag set Conditions were pretty tough. Lots of wind, lots of mirage.

    The rifle never performed better. Loading and extraction were smooth.

    We are shooting the 7MM Geramo, which is a 6.5 x 55 necked to 7mm and Ackley Improved. My bullet of choice is the 162 Hornady ELD Match. I worked with three powders, 4831 SC, Reloader 25, and H1000. Of these, the H1000 proves to be the best.

    The load I settled on is 56.2 grns of H1000, Winchester primer, .020 off the lands. This gives an average velocity of 2850 FPS out of the 27 inch long Krieger.

    The 7mm Geramo is turning out to be a very efficient and accurate chambering.

    As I said, the Rifle never performed better. Here are three nice groups I shot, (200 yards), and five bulls eyes. I think this is an honest ď250Ē combination.

    I cannot say 100 percent that my work on this action has paid off. What I can say is the Rifle has never shot this good with any barrel I ever had on it.

    This might be the Rifle that I take to the 300 meter ďTackDriverĒ in November.

    http://benchrest.com/attachment.php?...1&d=1595214120

    http://benchrest.com/attachment.php?...1&d=1595214168
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    Last edited by jackie schmidt; 07-19-2020 at 11:08 PM.

  9. #9
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    Pardon my ignorance

    What is that bare aluminum sleeve near the eyepiece on your scope?

    TIA,

    GsT

  10. #10
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    Quote Originally Posted by GeneT View Post
    What is that bare aluminum sleeve near the eyepiece on your scope?

    TIA,

    GsT
    Itís a magnifier I made from a +325 lens I bought at TSO. It turns the 36x Valdada into around 45x. I can slip it off if the need arises.

    I bought a 40 tp 60 March High Master from a fellow shooter on Accurate Shooter. I should get it this week.

  11. #11
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    Jackie it's nice to see you back to your old self again, sharing your adventures and projects with us. Keep up the good work. We all appreciate it.

    Best regards,

    Gene Beggs

  12. #12
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    Jackie,Nice work. I can see it now. Your going to get a bunch of requests to convert BAT bolts to a Remington shroud lol.
    It sure is easier to get a gun tuned when the firing system is working properly.

  13. #13
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    Quote Originally Posted by jackie schmidt View Post
    Itís a magnifier I made from a +325 lens I bought at TSO. It turns the 36x Valdada into around 45x. I can slip it off if the need arises.
    Slick! Thank you for the response.

    GsT

  14. #14
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    Quote Originally Posted by John VM View Post
    Jackie,Nice work. I can see it now. Your going to get a bunch of requests to convert BAT bolts to a Remington shroud lol.
    It sure is easier to get a gun tuned when the firing system is working properly.
    I doubt that. Most shooters will not step into something unless they are 100 percent sure they can put it back the way it was. That keeps a lot of ideas in the closet.

    I figured the worst outcome I would have is buying a new Bat M bolt if this project didnít meet expectations.

  15. #15
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    Regarding the method

    Quote Originally Posted by jackie schmidt View Post
    I doubt that. Most shooters will not step into something unless they are 100 percent sure they can put it back the way it was. That keeps a lot of ideas in the closet.

    I figured the worst outcome I would have is buying a new Bat M bolt if this project didnít meet expectations.
    BAT uses to set the firing pin fall...a screw to secure the pin in place with a second locking one, how prone is that to slippage and a change in FP fall length? Or is it bullet proof? Tks

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