Well that was not expected
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  1. #1
    Wrangler
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    Well that was not expected

    I have a Savage AXIS ll in 308 with a Boyd stock. IMG-5564.jpg While the rifle is dead accurate, after about 10 rounds, the barrel has a tendency to blur the scope with heat waves; aka mirage. This is a common problem with many rifles and the normal fix is to place a strip of some materiel along the top barrel, ie a Venetian blind or what I use, a strip of Xray film held on with magnets. In the attempt to come up with a more elegant fix, I bought a carbon fiber tube to slip over the barrel. The barrel is tapered and the carbon fiber tube is smaller than the base of the barrel, so the tube is held on with friction.

    IMG-5563.jpg I went to the range to try out my fix and after about 10 rounds, as expected the scope image started to blur (the rounds were grouping center of a 3" target at a 100 yard target). I slipped on the tube and saw the most of the blurriness was gone. Great! But then something unexpected happened. I fired off a couple rounds and they hit about 2 " lower than before. I then took of the tube and "attached" the Xray film on top the barrel and the point of aim returned to the center of the target again. I reinstalled the tube and sure enough it shoot 2" low. I rattled of a couple rounds and the grouping stayed 2" low,with a nice 1" pattern. So the carbon fiber tube was sufficient to change the elevation. Who knew?
    Last edited by onespeedbiker; 12-06-2018 at 11:25 AM.
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    Deadeye
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    Well, my friend, it IS a hunting rifle, so just shoot five rounds to verify zero and go home happy.
    Those light, skinny barreled rifles are not meant for much more than that.
    Carried a lot, shot very little, but bring home the bacon.

    You can always get a bull barreled .308 with a bipod to satisfy the Vasily Zietsev or Hathcock in you.

    or some Army men in a bag for $5 and a BB gun, like i do.
    307 confirmed kills to date.
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  3. #3
    Wrangler
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    Quote Originally Posted by Retirednsmilin View Post
    Well, my friend, it IS a hunting rifle, so just shoot five rounds to verify zero and go home happy.
    Those light, skinny barreled rifles are not meant for much more than that.
    Carried a lot, shot very little, but bring home the bacon.

    You can always get a bull barreled .308 with a bipod to satisfy the Vasily Zietsev or Hathcock in you.

    or some Army men in a bag for $5 and a BB gun, like i do.
    307 confirmed kills to date.
    Interestingly, I can (and have) shot over 40 rounds in a sitting and the point of aim never changes; but it really heats up!

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    Deadeye
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    Quote Originally Posted by onespeedbiker View Post
    Interestingly, I can (and have) shot over 40 rounds in a sitting and the point of aim never changes; but it really heats up!
    Just remember, nice beautiful SPORTING rifles were not meant to be shot with that high volume of fire.
    Military Surplus rifles were meant to do it all day long.
    Get yourself an FN converted .308 Mauser or a Spanish FR-8 and shoot it till the barrel melts down.
    ...then grab an alligator and fight another round.

    (if you don't get the reference, don't worry about it. You have to be about 800 years old to know. Back in the days of only 3 B&W channels on TV and rotary dial telephones).
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    A long carbon fiber tube on the objective end of the scope will solve your problem, (and create another with its length and fragility) The military has been eager for the same problem, you just can't change those laws of physics.

    AC
    Last edited by gunscrewguy; 02-07-2019 at 11:46 AM.
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    Marlin Marksman
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    Retirednsmilin, I remember that one, " we powdered his behind", lol. T Rex

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    Gun Wizard
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    Quote Originally Posted by Retirednsmilin View Post
    Just remember, nice beautiful SPORTING rifles were not meant to be shot with that high volume of fire.
    Military Surplus rifles were meant to do it all day long.
    Get yourself an FN converted .308 Mauser or a Spanish FR-8 and shoot it till the barrel melts down.
    ...then grab an alligator and fight another round.

    (if you don't get the reference, don't worry about it. You have to be about 800 years old to know. Back in the days of only 3 B&W channels on TV and rotary dial telephones).
    I got the big hound dog for branble chasing.

  9. #8
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    Quote Originally Posted by Retirednsmilin View Post
    Just remember, nice beautiful SPORTING rifles were not meant to be shot with that high volume of fire.
    Military Surplus rifles were meant to do it all day long.
    Get yourself an FN converted .308 Mauser or a Spanish FR-8 and shoot it till the barrel melts down.
    ...then grab an alligator and fight another round.

    (if you don't get the reference, don't worry about it. You have to be about 800 years old to know. Back in the days of only 3 B&W channels on TV and rotary dial telephones).
    Oh man you only had 3 channels then??



    We only had two.


    Just joking we had 3 too.
    My avatar is in Honor of my Great Grandfather , Corporal J.M. Johnston , who fought for the N.C. Confederate 36th Regiment , Company H , Heavy Artillery & who was captured by the Union at Fort Fisher, NC on Sunday, Jan. 15 1865 at @ 10:00PM.


    In Dixie Land I'll Take My Stand , To Live And Die in Dixie

  10. #9
    Marlin Marksman
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    Sight it in and go hunting, lets have fun with our guns !!!!
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  11. #10
    Sidewinder
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    Quote Originally Posted by T REX View Post
    Retirednsmilin, I remember that one, " we powdered his behind", lol. T Rex
    ". . . and when we touched the powder off the gator lost his mind." Yep, I 'member when that was fresh on the radio in the car. The tube kind that you hadda let warm up after you started the car. AM only. No stereo.

    The only stereo we ever had was when Mom and Dad said, in unison, "YOU KIDS SETTLE DOWN BACK THERE!"


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