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Long Distance setup for a .223 X7VH.

 
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  #1  
Old 04-12-2013, 08:16 PM
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Posts: 397
Long Distance setup for a .223 X7VH.

This looks like a forum that might get me going in the right direction.

I have a Marlin .223 X7VH with 26 in a heavy barrel, with a 1 to 9 twist.
I changed out the plastic stock for a nice maple one.

I have a 10x40-50 Barska scope mounted on it. Scope has
a mil-dot reticule and one eight moa tower and windage.

I am shooting a Sierra 69 grain HPBT Match bullet, pushed by 21.8 grains of
IMR 3031. I get 1 moa groups at 100 yards.

The problem:

I have an abundance of room on the tower. All for short yards
and very little below center. the minus numbers for long distance.
Have I got the scope set too high? It's at 1.8 inches high.
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  #2  
Old 04-13-2013, 11:59 AM
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Join Date: Nov 2008
Location: Central Pennsylvania
Posts: 4,033
Re: Long Distance setup for a .223 X7VH.

It's not too high. You may want to go to a 20MOA base rail that will allow you to use less elevation for a 100yd Zero. You'll want to fine tune that load too. You should really be in the .5MOA range for LRH, or competition. .25MOA to be really competitive.

Tank
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Matthew 7:13-14
"Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. [14] But small is the gate and narrow the road that leads to life, and only a few find it.

If you find your self in a fair fight, your tactics suck!- Marine 1st Sergeant Jim Ryfinger

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  #3  
Old 04-13-2013, 05:53 PM
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Posts: 397
Re: Long Distance setup for a .223 X7VH.

Thanks Tank,

A 20 moa base sounds good. The base I'm using came with the rifle from
the factory. I have no quams at all about replacing it. If I can find one that
will fit. I'm working on loads, but the shortage of powder is a problem.
I have some H4895 25gr pushing Sierra 69gr Btsp Match. I plan to shoot
that monday. Thanks for your input.
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  #4  
Old 04-13-2013, 06:15 PM
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Join Date: Nov 2008
Location: Central Pennsylvania
Posts: 4,033
Re: Long Distance setup for a .223 X7VH.

Yep, no problem.
__________________
Matthew 7:13-14
"Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. [14] But small is the gate and narrow the road that leads to life, and only a few find it.

If you find your self in a fair fight, your tactics suck!- Marine 1st Sergeant Jim Ryfinger

Friends don't let friends develop canonitis!-chucknbach

arguing over the internet is like the special Olympics....even if you win, you are still...special!
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  #5  
Old 04-14-2013, 12:31 AM
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Join Date: Nov 2011
Posts: 397
Re: Long Distance setup for a .223 X7VH.

Quote:
Originally Posted by liltank View Post
Yep, no problem.
I took off the scope and the base. measured the base and it's a 20 moa.

Sooo I shimmed up the back of the base .1875. That looks a whole lot better.
Now I've got 7.5 moa on the top and 30 moa on the bottom. Should have
plenty of window for the long ones.

I thought maybe the scope was haywire, just goes to show that a little push in the right direction sure helps.
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