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Remington 770

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  #8  
Unread 04-14-2008, 07:31 PM
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Quote:
Originally Posted by Marshall View Post
Well from the sticky's listed, they're really just explanations of the shot. I can shoot.. 100 yards. Although, I've never attempted anything longer than 100 yards. I just wondered whether my current rifle would be good enough to do these long range targets, or if I should use another.
what group size can you shoot at 100 and what scope do you have on the rifle ? and do you know the speed of the bullet ? and what bullet are you useing
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  •   #9  
    Unread 04-14-2008, 08:20 PM
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    Join Date: Apr 2008
    Location: Florida
    Posts: 8
    Quote:
    Originally Posted by dskd View Post
    what group size can you shoot at 100 and what scope do you have on the rifle ? and do you know the speed of the bullet ? and what bullet are you useing
    I'm not sure of the grouping size.

    The scope is a Bushnell 3-9x40.

    I normally shoot Remington Core Lokt soft points at 180gr.

    As for the speed..

    100 yd -- 2348
    200 yd -- 2023
    300 yd -- 1727
    400 yd -- 1466
    500 yd -- 1251
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      #10  
    Unread 04-15-2008, 04:06 AM
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    Quote:
    Originally Posted by Marshall View Post
    I'm not sure of the grouping size.

    The scope is a Bushnell 3-9x40.

    I normally shoot Remington Core Lokt soft points at 180gr.

    As for the speed..

    100 yd -- 2348
    200 yd -- 2023
    300 yd -- 1727
    400 yd -- 1466
    500 yd -- 1251
    thats the speed of the box i take it
    shoot a 5 shoot group and tell us the size
    does your scope have target turrets or aiming points ?
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      #11  
    Unread 04-15-2008, 04:11 AM
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    hears a drop table for you to try









    Sight Adjustments NeededTrajectory ValuesRANGEElevationWindageElevationWind DriftVelocityEnergy(yd)MOAMOA(in)(in)(fps)(ft-lb)00.000.00-1.50.027002913500.250.50-0.1-0.2258826771000.000.750.0-0.8248024571500.751.25-1.3-1.9237322502002.001.75-4.2-3.5226920582503.252.25-8.7-5.7216818793004.752.75-15.1-8.3207017133506.503.25-23.5-11.6197515584008.253.75-34.2-15.51882141545010.004.25-47.2-20.11792128350012.004.75-63.1-25.41705116155014.255.50-81.8-31.51621105060016.506.00-103.9-38.5154194965019.006.75-129.7-46.2146685870021.757.50-159.5-54.9139477675024.758.25-193.8-64.6132770480027.759.00-233.0-75.1126764185031.259.75-277.6-86.71211586
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      #12  
    Unread 04-15-2008, 04:15 AM
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    that didnt work well now did it

    Sight Adjustments Needed Trajectory Values
    RANGE Elevation Windage Elevation Wind Drift Velocity Energy
    (yd) MOA MOA (in) (in) (fps) (ft-lb)
    0 0.00 0.00 -1.5 0.0 2700 2913
    50 0.25 0.50 -0.1 -0.2 2588 2677
    100 0.00 0.75 0.0 -0.8 2480 2457
    150 0.75 1.25 -1.3 -1.9 2373 2250
    200 2.00 1.75 -4.2 -3.5 2269 2058
    250 3.25 2.25 -8.7 -5.7 2168 1879
    300 4.75 2.75 -15.1 -8.3 2070 1713
    350 6.50 3.25 -23.5 -11.6 1975 1558
    400 8.25 3.75 -34.2 -15.5 1882 1415
    450 10.00 4.25 -47.2 -20.1 1792 1283
    500 12.00 4.75 -63.1 -25.4 1705 1161
    550 14.25 5.50 -81.8 -31.5 1621 1050
    600 16.50 6.00 -103.9 -38.5 1541 949
    650 19.00 6.75 -129.7 -46.2 1466 858
    700 21.75 7.50 -159.5 -54.9 1394 776
    750 24.75 8.25 -193.8 -64.6 1327 704
    800 27.75 9.00 -233.0 -75.1 1267 641
    850 31.25 9.75 -277.6 -86.7 1211 586
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      #13  
    Unread 04-15-2008, 05:37 AM
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    Marshall,

    A MOA is an angular measurement which stands for “Minute Of Angle”.

    0ne MOA, at 100 yards happens to be very close to 1” inch.

    1 MOA = 0.01’00” = 0.0166667

    The vertical distance 1 MOA produces at 100 yards would be:

    Vertical Distance = 100 yards X Tan (0.0166667) = 0.029089 yards.

    Converting yards to inches would give us: 0.029089 X 3 X 12 = 1.047”

    This value, 1 MOA = 1.047”, is the value ballistic programs use.

    Many scope turrets are calibrated in MOA’s and when your drop chart says that to shoot at 480 yards you need 6.0 MOA’S then you turn your turret to the number 6 and let it fly. We’re just talking for the vertical adjustment. This method is more precise than other methods that use turrets having distances on them instead of MOA’s. Good luck to you!
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      #14  
    Unread 04-15-2008, 07:06 AM
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    Marshall:
    You're in a good place with a good starting point. The rifle you have is a great base from which to start. My recommendation for you would be to read, read, read. Then read some more. After you're done reading, take what you've learned to the range and shoot, shoot, shoot.

    From your reading you will eventually learn the definition of all the terms.

    From your shooting you will learn everything about your gun and cartridge. From that you will begin to have opinions of what you want or don't want, what you like and don't like.

    From all this, you will be able to ask more precise questions and get more precise answers.

    So that's my general answer. For something more specific for you, I have several recommendations for your current rifle.

    1. Get your barrel free floated. If you're a little bit handy, this is something you can do yourself (wouldn't take much to find instructions on this site or someplace on the internet). By free-floating your barrel you ensure that nothing is touching your barrel which can influence how it behaves when being shot and it's more likely it will behave the same from shot to shot (remember, consistency leads to accuracy)

    2. Have a gunsmith work on your trigger and have it set for 2.5 or 3 pounds of trigger pull. By reducing the trigger pull, you reduce the amount of tension (or influence) you have on the gun during the shot.

    3. While the gunsmith is working on your trigger, have him check your scope bases and rings - to ensure they're rock-solid in place. You would be surprised how many people think their rifle is terribly inaccurate and it's really just a loose scope ring or base.

    Hope that helps.
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