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shim for scope base

  • 06-02-2010 08:42PM
    #1
    kartoonhead
    Registered Users, Registered Users 2 Posts: 39 ✭


    how many shims needed for flat base mil-std for .308 cal rifle for 600-1000 yard shooting . scoope is nxs 42x56 run out of elev at 600 silght hold over required to reach it .any input would be cool;)


Comments

  • #2
    clivej
    Registered Users, Registered Users 2 Posts: 7,111 ✭✭✭clivej


    Look in the Hunting Tips section for a shim guide


  • #3
    kartoonhead
    Registered Users, Registered Users 2 Posts: 39 ✭kartoonhead


    thanks mr clivej :D


  • #4
    dwighet
    Registered Users, Registered Users 2 Posts: 2,399 ✭✭✭dwighet


    Personnally I would opt for a 20moa one piece picatinny rail...
    I have one of these for my 300 winnie


  • #5
    BELOWaverageIQ
    Closed Accounts Posts: 703 ✭✭✭BELOWaverageIQ


    Have you tried dialing the scope right down prior to zeroing and then "re-zeroing ..?


  • #6
    kartoonhead
    Registered Users, Registered Users 2 Posts: 39 ✭kartoonhead


    dwighet wrote: »
    Personnally I would opt for a 20moa one piece picatinny rail...
    I have one of these for my 300 winnie
    yeah will they fit an ai ae rifle , cheapest one is in the states 118 us d sporting services uk have rails not cheap though


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  • #7
    kartoonhead
    Registered Users, Registered Users 2 Posts: 39 ✭kartoonhead


    BELOWaverageIQ wrote: »
    Have you tried dialing the scope right down prior to zeroing and then "re-zeroing ..?
    yeah scope is fine tracking is sound would it lose clik value ?


  • #8
    BELOWaverageIQ
    Closed Accounts Posts: 703 ✭✭✭BELOWaverageIQ


    If you set the scope at "mid" dia in the same fashion as you would set the windage at centre dial prior to actual zeroing you will soon run out of elevation for long range shooting.
    My advice would be to set the elevation about 25% from bottom at bore sighting stage.
    It won't give you the same elevation as say a 20* onepiece mount but it will help
    ( am I making sence ? )


  • #9
    Cass
    Moderators, Sports Moderators Posts: 28,746 Mod ✭✭✭✭Cass


    kartoonhead wrote: »
    ........ scoope is nxs 42x56 run out of elev at 600 silght hold over required to reach it ......

    Very surprised at that. Have used a 12-42x56 NXS on both .308 and 6.5x55 and had more than enough MOA to reach 600 with 9-12 moa spare. Possibly good enough for 800yd.

    What rifle are you using and what ammo are you running through it?

    Would consider what BELOWaverageIQ said..........
    BELOWaverageIQ wrote:
    Have you tried dialing the scope right down prior to zeroing and then "re-zeroing ..?

    .....may be a good option. The scope has 45 MOA so even with a 100yd/20moa zero and taking into account you should need no more than 15 moa (35 moa total) to reach 600yds you should at least be able to reach 600yds if not have more MOA to spare.
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  • #10
    dwighet
    Registered Users, Registered Users 2 Posts: 2,399 ✭✭✭dwighet


    kartoonhead wrote: »
    yeah will they fit an ai ae rifle , cheapest one is in the states 118 us d sporting services uk have rails not cheap though

    Give ya man a call...His name is Craig...His number is on the site I sent you..
    Hes a good man to deal with....Nothing is too much trouble for him.
    Also the rings he makes for his rails are of equl quality the the nightforce rings but cheaper...
    The ones i ordered will be in tomorrows post so I will send a pic of em to you..
    When they arrive


  • #11
    clivej
    Registered Users, Registered Users 2 Posts: 7,111 ✭✭✭clivej


    ThirdeyeTactical.com

    The key to accuracy in manufacture is to minimise the number of operations required to complete the machining process. By investing in new Technology, we have been able to cut the number of operations required from eight to two. By doing this, there is no accuracy loss due to re setting for different operations.

    A video showing the Machining of a Thirdeye 30mm scope ring.
    The Machine used is a 2009 Mazak Integrex 100 5 axis Machining centre
    Material is Aluminium 7075 grade. Tooling by WNT and ITC........Enjoy

    https://www.youtube.com/watch?v=9Rscui45sGA


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  • #12
    kartoonhead
    Registered Users, Registered Users 2 Posts: 39 ✭kartoonhead


    BELOWaverageIQ wrote: »
    If you set the scope at "mid" dia in the same fashion as you would set the windage at centre dial prior to actual zeroing you will soon run out of elevation for long range shooting.
    My advice would be to set the elevation about 25% from bottom at bore sighting stage.
    It won't give you the same elevation as say a 20* onepiece mount but it will help
    ( am I making sence ? )
    scope is set mid dia equal amount of moa each way i will bore sight it as you sugget and let you know cheers


  • #13
    kartoonhead
    Registered Users, Registered Users 2 Posts: 39 ✭kartoonhead


    ezridax wrote: »
    Very surprised at that. Have used a 12-42x56 NXS on both .308 and 6.5x55 and had more than enough MOA to reach 600 with 9-12 moa spare. Possibly good enough for 800yd.

    What rifle are you using and what ammo are you running through it?

    Would consider what BELOWaverageIQ said..........


    .....may be a good option. The scope has 45 MOA so even with a 100yd/20moa zero and taking into account you should need no more than 15 moa (35 moa total) to reach 600yds you should at least be able to reach 600yds if not have more MOA to spare.
    rifle is ai ae 155 sceaner yeah what below was saying is correct dia is set set mid range on scope will bore sight and reset just could not figure out what was up scope is more than up for it will be on range sunday next hopefully will suss it out thanks


  • #14
    kartoonhead
    Registered Users, Registered Users 2 Posts: 39 ✭kartoonhead


    dwighet wrote: »
    Give ya man a call...His name is Craig...His number is on the site I sent you..
    Hes a good man to deal with....Nothing is too much trouble for him.
    Also the rings he makes for his rails are of equl quality the the nightforce rings but cheaper...
    The ones i ordered will be in tomorrows post so I will send a pic of em to you..
    When they arrive
    yeah sound dwight i will certainly have a look he is not too pricey either


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