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7mm Rem mag load

 
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  #8  
Old 03-05-2010, 04:03 PM
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Posts: 17
Re: 7mm Rem mag load

I shot 3 different 5 shot groups with this sendero and the best group was 1.5 moa at 100 yards. That is unacceptable. I have this gun in 22-250 and it shoots the 55gr bergers 1/2 moa all day long. What's the first thing I should check before a get rid of this rifle?
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  #9  
Old 03-05-2010, 04:23 PM
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Location: Central Pennsylvania
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Re: 7mm Rem mag load

Quote:
Originally Posted by Smoke View Post
I shot 3 different 5 shot groups with this sendero and the best group was 1.5 moa at 100 yards. That is unacceptable. I have this gun in 22-250 and it shoots the 55gr bergers 1/2 moa all day long. What's the first thing I should check before a get rid of this rifle?

Barrel break-in, floated barrel, and trigger. Bed the stock, and true the action after that. Make sure all your screws and mounts are tight.

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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  #10  
Old 03-05-2010, 07:21 PM
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Join Date: Nov 2009
Posts: 17
Re: 7mm Rem mag load

I broke in the barrel as per instructions on this website 2 months ago. I replaced the factory trigger with a Jewel and it is unbelievable. As far as bedding goes, I assumed it was already glass bedded. How would I go about trueing the action?
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  #11  
Old 03-05-2010, 07:52 PM
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Join Date: Dec 2008
Location: Towanda, Pa
Posts: 65
Re: 7mm Rem mag load

I'm shooting a Ruger M77 MK II 26" 7mm Mag
68.1 gr. of H4831sc, Rem 9.5M Primer, 168 gr. Berger seated .003 off the lands gets me 3014 fps and .5 to .6 groups. This isn't my max load but if you use this work up to it...

Good luck, hope all goes well
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  #12  
Old 03-05-2010, 08:10 PM
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Join Date: Nov 2008
Location: Central Pennsylvania
Posts: 4,012
Re: 7mm Rem mag load

Quote:
Originally Posted by Smoke View Post
I broke in the barrel as per instructions on this website 2 months ago. I replaced the factory trigger with a Jewel and it is unbelievable. As far as bedding goes, I assumed it was already glass bedded. How would I go about trueing the action?

That you will have to take to a gunsmith. It requires pulling the barrel off, cutting the bolt face to match the barrel surface. It ain't cheap. Have a smith look at the stock to see if there is any bad pressure points on the action, and maybe do a skim coat. It may need a little relief in some areas.

Tank
__________________
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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  #13  
Old 03-05-2010, 09:03 PM
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Join Date: Dec 2008
Location: Oregon
Posts: 369
Re: 7mm Rem mag load

Before you spend tons of money you might try playing with seating depths especially with the Bergers. My factory 700 was a little fussy with the Bergers. I think I finally settled with a COL of 3.380" with 72 gr of Retumbo and Fed 215's. Good luck!

Doug
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  #14  
Old 03-05-2010, 09:22 PM
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Join Date: Nov 2008
Location: Central Pennsylvania
Posts: 4,012
Re: 7mm Rem mag load

Quote:
Originally Posted by roadhunter View Post
Before you spend tons of money you might try playing with seating depths especially with the Bergers. My factory 700 was a little fussy with the Bergers. I think I finally settled with a COL of 3.380" with 72 gr of Retumbo and Fed 215's. Good luck!

Doug

I'm such a dummy... I didn't even think of that. I was to focused on the rifle. Good catch man. I feel like a chump right now. That will probably fix the problem. I would still make sure the bedding is in good shape.

Tank
__________________
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!
Reply With Quote
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