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Why is 7mm not good in long range competition?

 
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  #8  
Old 10-13-2004, 05:29 PM
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Re: Why is 7mm not good in long range competition?

My idea of extreme range for hunting would be vaguely between 400 out to say 700 yards.

So, I was scanning the web for long range competiton results and it just seemed very odd that 7mm with the high BC's didn't appear to be equal to the 300 Ackley or Win Mags.
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  #9  
Old 10-13-2004, 11:03 PM
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Re: Why is 7mm not good in long range competition?

Many years ago some of the highest scores were done with the 300 Weatherby mag.

The 300 win mag has had some fine scores.

Let's just say that within the last 15 years of Ultra mag guns in 1000 yard comp. shoots that the guys like me with the under dog .277 & .284's were never in the same class as the 30-378's and .338 lapua's.

I'm sure that national class shooters with time could refine smaller dia. bullets to do the same.

I have books on WW2 guns and the Germans made some anti light tank gun with a decreasing diameter barrel to attain @5000 fps carried by foot troops. It might be the gun to find to do anything you ever wanted.
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  #10  
Old 10-14-2004, 06:11 AM
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Re: Why is 7mm not good in long range competition?

Did not hear the mile record was rebroken. Where can I find that data. IIRC the record was like 11 inches at 1600 yards which is pretty impressive as it is. I'd love to see data on a 5 inch or so group at that distance. The 30s have always seemed to rule the long range target stuff. Everytime I asked about the 7s its the accuracy question. Though David Tubb said you could set records at 1000 with the 7 STW but could you afford the barrels?

As to the hunting question-- I don't think that the 7mm is ideal for longer shots. I"d much prefer 30-338 cal for anything thats 500 yards and longer. A bit more punch.
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  #11  
Old 10-14-2004, 08:30 AM
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Re: Why is 7mm not good in long range competition?

I am wanting a rifle light enough to carry around hunting. I was just looking to the other world of target rifles for some tips, but it may not be an accurate interface. Comparing the results of Berger and other match bullets with results from TSX, Accubonds etc. may be futile.
But none the less I have been limited to about 400 yards or maybe a little farther because of the size of my groups.
I'm talking about several different 7 mags, 25-06, 270 win. Rifles that will shoot less than 1MOA @ 100 and even 200 yards. These rifles's groups have opened up to about 8" @ 400 yards.
So I am desperate enough, I started a project with a Broughton #5, 1-11 twist with their canted lands rifling, hopefully the 8" groups will occur much farther out with .30 cal 180 grainers.
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  #12  
Old 10-14-2004, 09:14 AM
 
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Re: Why is 7mm not good in long range competition?

The group was 7.3 inch's...Shot at the IBS Nats in Ohio
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  #13  
Old 10-14-2004, 10:10 AM
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Re: Why is 7mm not good in long range competition?

The long one( [img]images/icons/grin.gif[/img] )

eddy K's 7" group was only at 1680yds, so it probably isnt really a record. Tim lamberts 10 incher was at 1760 wasnt it??

JB
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  #14  
Old 10-14-2004, 12:36 PM
 
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Re: Why is 7mm not good in long range competition?

With all this..Mile thats almost a mile.A mile thats just a shade under a mile stuff.I't hard to keep track [img]images/icons/confused.gif[/img]
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