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initial 107 matrix accuracy test.

 
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  #1  
Old 04-01-2011, 07:30 AM
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initial 107 matrix accuracy test.

I shot my new 6br yesterday, the previous afternoon I shot 10 bullets to brake-in and velocity test.

So I made 2 generic loads seating die depth didn't change for the 2 bullets used.

31 grains of varget topped with a 107 SMK shot a 5 shot 1.5" group at 600 yards.

The same Load with the 107 Matrix went into 4 inches. I will give them another go and try and tune a seating depth.

Velocity of both bullets averaged 2850.
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Old 04-01-2011, 07:50 AM
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Re: initial 107 matrix accuracy test.

Jim, your 600 yard group is very impressive with the 107 SMK's. I shoot them in my 6br. Mine will not shoot 31 gr of varget it is to hot. So I had to back down to 29. (28" Krieger) What are ya using for a primer? I have found my rifle to be a bit picky with primer selection.

Please keep us informed as your test continues. I always like to hear about a 6br with big bullets. Awesome caliber.

Jeff
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Old 04-01-2011, 05:38 PM
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Re: initial 107 matrix accuracy test.

Jeff, I noticed a couple of very very slight ejector marks on a couple of the case heads and backed it down to 30.6 today and loaded some more 107 smk and matrix. Will shoot them soon to test.

I measured the group today and it was 1.350"
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Old 04-01-2011, 09:33 PM
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Re: initial 107 matrix accuracy test.

Jim,
Just want to say that you not only build very accurate rigs, you can also shoot them very well too!!!
Good for you!
Ernie
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Old 04-02-2011, 06:56 PM
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Re: initial 107 matrix accuracy test.

Thanks Ernie,

I just finished shooting the Matrix 107 again today,

Not good, changed powder charge in one load and seating depth in the other. At 450 yards they were running around 3/4-1 moa in a 1/4 moa capable gun.

For what they charge, They should just buy smk 107s and repackage them.
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Old 04-02-2011, 07:02 PM
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Re: initial 107 matrix accuracy test.

I hope you contact them and let them know how they are doing. I would assume they would want to correct it.
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Old 04-02-2011, 07:04 PM
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Re: initial 107 matrix accuracy test.

Well I guess I will look at smk's when Nate finishes my Dasher comp rifle.





Brent
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