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Bedding- it does make a difference!!

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  • bubbapug1
    Calguns Addict
    • Nov 2008
    • 7958

    Bedding- it does make a difference!!

    This is an old thread about bedding. The pics pretty much tell the story. I tried bedding and it fixed my gun. Here are the results

    Here is a little write up about how my Nikko 375 went from 6 moa accuracy to 1.5 moa. I can't fathom how so much could be accomplished by bedding, but it happened.

    A few months ago I was writing about a Nikko 375 H&H I had bought at an auction. The gun is beautiful, but would not shoot. I asked for recommendations on what the issue could be as I was stumped. The action seemed tight, the ammo was reloaded carefully or new Weatherby stuff, inletting appeared excellent, , and I double checked the scope after some initial issues, and it was solid as a rock (because I bedded it too)



    I put at least 140 rounds down range, but alas, nothing worked and the gun was about to be used as firewood!

    My shooting amigo kept telling me to bed the action and put a pressure point on the barrel at 2" back from the end of the stock...just like Weatherby does. The pressure point didn't help, and I also free floated the barrel. Nothing at all changed, but I still didn't bedded the action.

    As you read the comments on my past thread there are many recommendations on possible fixes, and I appreciate the input. As many of you know, the Nikko has a rear locking bolt, and many individuals said forget the Nikko, it can NEVER be made accurate because the bolt flexes....well - Lee Enfield's are also rear locking, and are accurate guns, so I gritted my teeth and just got more frustrated and hopeless.



    I read all I could about what guys were doing to bed their sporters. I finally gave up my stubborn streak, bought some Clear shoe polish, modeling clay, and JB weld.

    After my research on sporters with 26" long whippy barrels I opted to go for bedding the barrel 3/4 of the way down fore stock, in the recoil lug area, at the front of the action and receiver area and joint, and the only solid area aft of the magazine inlet. I couldn't do the back tang on the Nikko. There just isn't any area solid enough to build bedding to.


    So here is the finished product



    From the Front - barrel is about 3/4 contained in the fore grip




    Recoil lug area looking forward





    Recoil lug - note the thinness on sidewalls, The inletting job was very good, but not good enough I guess!




    Area just behind magazine well. The was the only area I could bed on the action besides the recoil lug...Note how thin the epoxy is on the sides again, not much to give, but enough to jack up the rifle.

    I took the gun out yesterday to West end. I am glad to report it performed more like a real rifle. I shot two groups of 5 rounds each and the gun has gone from a 6 moa rifle to a 1.5 moa rifle. I didn't wait for the barrel to cool, or do any other protocol to help its chances. I held it tight, loose, on a hard bag, soft bag...it didn't really care. I tried different weight bullets, and while the POI was slightly different, the gun shot consistently!

    So the bedding worked, although I am not sure why!!!!!

    Man, what a PITA this whole process was, but at least now I have a accurate beautiful 375 for $800.00!!

    So please, someone explain to me why this worked???




    Start of the old thread from December....

    Some of you have seen my thread about my struggles with a Nikko 375 H&H.



    I changed scopes, mounts, loads, bases, etc. I can't get it to shoot less than an 8" group for five shots at 100 yards. That's unacceptable. I have a Rossi lever action with irons that does better than that.

    Im really scratching my head here. The one other area I'm looking at is the stock. It's not a great fit. There's a big resin run underneath the foreend, and the one pillar mount is not what I would call rigid.

    I just can't believe things could get so distorted between the action/scope and barrel to throw shots so far off. I had my 6mm br go off the deep end a few months back but that was due to thinner bullets not getting spun up in the larger 6mm bore. I've tried three different loads and Bullet types in this beast to no avail.

    Can bedding the action really make a large difference in a guns accuracy? Could it be the stock action fit allows the gun to twist a bit putting the scope on a different poi shot to shot? I sometimes get two shots a 1/2" apart, than comes the flier 6 or 8" away.

    Any ideas?
    Last edited by bubbapug1; 02-16-2017, 11:14 AM.
    I love America for the rights and freedoms we used to have.
  • #2
    ar15barrels
    I need a LIFE!!
    • Jan 2006
    • 57099

    Bedding helps when a receiver has poor or unstable or stressed fit within the stock.
    A stock that already fits properly without any stress will see very little benefit from bedding.

    On a gun with accuracy problems, you bed it as a test to see if it helps.
    If it does not help, you know that the bedding was not the problem.
    Randall Rausch

    AR work: www.ar15barrels.com
    Bolt actions: www.700barrels.com
    Foreign Semi Autos: www.akbarrels.com
    Barrel, sight and trigger work on most pistols and shotguns.
    Most work performed while-you-wait.

    Comment

    • #3
      ElvenSoul
      I need a LIFE!!
      • Apr 2008
      • 17431

      Are you sure your using the right ammo?

      Slug the barrel and check the chamber.

      Because that is in the realm of something is major wrong inaccuracy!
      sigpic

      Comment

      • #4
        bubbapug1
        Calguns Addict
        • Nov 2008
        • 7958

        The cases deform very little from firing. I don't think it's a chamber issue.

        The receiver isn't stressed in the inletting if anything it's a little loose. Maybe the gimpy 6/48 screws holding the scope bases could stand to be beefed up, but I really don't detect looseness in the mount.

        It's definitely a .375 barrel. But as I learned with the 6mm br fiasco I had, a few thousandths of diameter in bullets can make a huge difference in groupings.
        I love America for the rights and freedoms we used to have.

        Comment

        • #5
          russ69
          Calguns Addict
          • Nov 2009
          • 9348

          Unless you are the worlds worse shot, there is something really wrong with that gun. A smooth bore musket might shoot just as well. Something big is wrong.
          sigpic

          Comment

          • #6
            bubbapug1
            Calguns Addict
            • Nov 2008
            • 7958

            My smooth bore musket shoots better.

            Yea looks like it's going to have to visit Randall
            I love America for the rights and freedoms we used to have.

            Comment

            • #7
              ProtectThe2nd
              In Memoriam
              • Mar 2016
              • 1225

              If your wife has a bad back you would already know that bedding makes a huge difference...happy wife, happy life.















              Oh, rifle bedding...LMAO
              sigpic
              ESCAPE IF YOU CAN


              A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

              "The Second Amendment ex-tends, prima facie, to all instruments that constitute bearable arms, even those that were not in existence at the time of the founding." - The United States Supreme Court -

              Comment

              • #8
                Teachu2
                Senior Member
                • Mar 2012
                • 835

                I once bought a rifle that shot 5"+ groups. Bedded it and floated the barrel, and it shot 3/4" groups.

                Comment

                • #9
                  pacrat
                  I need a LIFE!!
                  • May 2014
                  • 10280

                  Bedding- does it make that much of a difference?


                  Yes, it can. Poorly bedded means poor accuracy.

                  Can't build a solid house on a weak foundation.


                  JM2c

                  Comment

                  • #10
                    Hairball
                    Senior Member
                    • May 2013
                    • 799

                    Originally posted by bubbapug1
                    There's a big resin run underneath the foreend
                    Maybe someone tried to repair a crack or maybe experimented with bedding. Get it to a good gunsmith and have them tear it down and check it over. Have you tried shooting at 50 yards with the iron sights and see how it does?

                    Comment

                    • #11
                      bubbapug1
                      Calguns Addict
                      • Nov 2008
                      • 7958

                      I'll try the iron sights. That will at least settle the scope mount issue in my head.

                      Thanks.
                      I love America for the rights and freedoms we used to have.

                      Comment

                      • #12
                        ElvenSoul
                        I need a LIFE!!
                        • Apr 2008
                        • 17431

                        I know the old Saco Rifles had a huge gap where the tang meets the stock. Early models had a accuracy problem. The simple fix was make the notch bigger.
                        sigpic

                        Comment

                        • #13
                          LynnJr
                          Calguns Addict
                          • Jan 2013
                          • 7956

                          I can see bedding make a 2 inch gun shoot 3/4 inch but it won't fix a 8 inch gun.
                          Something is loose somewhere.
                          But to check your bedding put three business cards between the stock and action and tighten it back down. If the stock is hitting the barrel or the bedding is bad this should shrink your groups right away.
                          A simple test is to loosen and tighten one action bolt at a time while keeping your index finger on the stock and barrel both. You can feel about a thousandths movement.
                          Last edited by LynnJr; 11-11-2016, 6:07 AM.
                          Lynn Dragoman, Jr.
                          Southwest Regional Director
                          Unlimited Range Shooters Association (URSA)
                          www.unlimitedrange.org
                          Not a commercial business.
                          URSA - Competition starts at 2000 yards!

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                          • #14
                            SMarquez
                            Senior Member
                            • Jun 2011
                            • 2216

                            Originally posted by bubbapug1
                            The cases deform very little from firing. I don't think it's a chamber issue.

                            The receiver isn't stressed in the inletting if anything it's a little loose. Maybe the gimpy 6/48 screws holding the scope bases could stand to be beefed up, but I really don't detect looseness in the mount.

                            It's definitely a .375 barrel. But as I learned with the 6mm br fiasco I had, a few thousandths of diameter in bullets can make a huge difference in groupings.
                            A little loose will do it. Bed it or have it bedded to eliminate that. It should be tight without binding or twisting.

                            Comment

                            • #15
                              arnie19
                              Member
                              • Dec 2011
                              • 367

                              If the metal is moving in the stock ,then your only holding the stock .The action ,barrel and scope are moving around from recoil .I have seen fouled barrels shoot bad and get real accurate with an extensive cleaning .

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