Max Bullet Grain in the SCAR 17

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Thread: Max Bullet Grain in the SCAR 17

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    Senior Member s4mur41h4x0r's Avatar
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    Max Bullet Grain in the SCAR 17

    Pretty sure I am getting a SCAR 17 but I was hoping someone had the answer to this question.

    What is the max bullet grain you can shoot out of the SCAR 17?

    I know on the M1A the max grain is 175gn, anything above that is not recommended.

    Thoughts?
    ~Samurai


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    Senior Member CAN KILL YOU WITH JUST HIS FINGER djpaintles's Avatar
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    175's and 178's shoot great. I may have to try some heavier just to see..........dj
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    Senior Member cetane's Avatar
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    Isnt the problem that the overall length wont fit or feed from the magazine? Does a heavier grain bullet get longer than the lighter ones?

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    Senior Member s4mur41h4x0r's Avatar
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    Quote Originally Posted by cetane View Post
    Does a heavier grain bullet get longer than the lighter ones?
    Correct the higher the grain the longer the bullet
    ~Samurai

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    Senior Member Bullseye Shooter
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    Quote Originally Posted by djpaintles View Post
    175's and 178's shoot great. I may have to try some heavier just to see..........dj
    I would love to see that. What grain weights do you think you will try first?

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    Senior Member Bullseye Shooter UltraFudd's Avatar
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    About the longest standard round for 7.62 NATO is M118 Special Ball with a 175 gr boattail bullet and an overall spec length of 2.83"

    As long as you don't exceed the OAL you should be fine with a 175, 178 or even 180 grain bullet. Your problem going heavier is that the 1:12 barrel twist rate won't do you a lot of good with anything heavier. You want to shoot heavier, you'll need to go to a 1:10.
    Last edited by UltraFudd; 02-22-2012 at 08:08 AM.
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    Senior Member s4mur41h4x0r's Avatar
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    Quote Originally Posted by UltraFudd View Post
    Your problem going heavier is that the 1:12 barrel twist rate won't do you a lot of good with anything heavier. You want to shoot heavier, you'll need to go to a 1:10.
    This was my line of thinking as well and where I was going with my question
    ~Samurai

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    Barre length is a factor also, slower twist rates, shorter barrel lengths, and heavy bullet weights are not going to do well at extended ranges, higher bullet weight, lower velocities and a lower bullet RPM will cause the round to destabilize sooner.
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    Figured I would resurrect this and see if anyone had tried 180 grain in the 17. I have about 300 rounds of Sierra match laying around and thought I may try it out this weekend. What do you all think?
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    Quote Originally Posted by Wy4tt View Post
    What do you all think?
    Depends on what your expecting to get from it. They will shoot, but the slow twist rate and 16" barrel they wont make for a very good long range round I feel. I also would be very careful if I was using a suppressor and the heavier longer bullets, depending on the velocities you run a higher risk of baffle strikes as the could be less stable.

    With the SCAR being a carbine I tend to stick with 168gr and lighter.
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