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Shooting the .224 wildcat RBBT at a 1000 yards

 
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  #8  
Old 08-30-2006, 01:44 PM
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Join Date: Jan 2003
Location: Wallaroo, South Australia
Posts: 201
Re: Shooting the .224 wildcat RBBT at a 1000 yards

Reed,

I just compared the specifications of the 90 grain bullets from Sierra, Berger, and JLK, with the Wildcat 100 grain ULD.

I note that the JLK list its bc as .580, but they have been around for a long time, and tested by many out to 1000 yards.

I looked up an old post on this forum by Rost495, who had used them a lot in his .223, and he said that:
"the bc of the JLK is .560-565 after doing a bunch of shooting, chronographing, and then comparing comeups from the ballistic programs, and is backed by AMUs actual doppler at 1000 yards."

The comparison of the bullet specifications:
weight, overall length, boat tail length, base/ogive, bc.
Sierra---90, 1.160, .165, .560, .504.
Berger---90, 1.260, .180, .599, .517.
JLK------90, 1.225, .180, .595, .580 (listed)
Wildcat-100, 1.300, .150, .700, ???

The results in your rifle is what counts for you, and it will be interesting to see what my .224 Clark produces in about 2 months time, after my gunsmith chambers the rifle, after getting back from an extended shooting trip.

It is encouraging that the general consensus it that the Wildcat 100 grain bullets are capable of shooting very accurately. Regards, Brian.
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  #9  
Old 08-30-2006, 05:30 PM
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Join Date: Sep 2003
Posts: 347
Re: Shooting the .224 wildcat RBBT at a 1000 yards

Brian I hope the b.c's are that high and your right the 90 grain Jlk's have been around for a long time. I have not noticed in actual shooting conditions out to 1000 yards really much of an affect in the wind. The wildcat seems to out right shoot in the wind. It makes me believe that the b.c is pretty good. I m going to buy couple hundred berger 90 vlds to test to. I can say that at a thousand yards my drop was more than the charts indicated, but the windage was less [img]/ubbthreads/images/graemlins/cool.gif[/img] The wildcats do just shoot and you can't beat a guy that will make just about anything you can talior up. Good luck with clark. 3300 fps should be easy
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  #10  
Old 08-31-2006, 02:21 PM
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Join Date: Jan 2003
Location: Wallaroo, South Australia
Posts: 201
Re: Shooting the .224 wildcat RBBT at a 1000 yards

Reed, I agree that 3,300 should be achievable with the 100 grain bullet from the .224 Clark. However, my real interest will be whether my 6.5 twist Krieger will do a better job at getting the bullets to the target at those velocities than Kirby's 7 twist Lilja.

At the moment I am a tad pessimistic about my chances, but then even if they don't hold together at 3,300 fps, but can deliver sub 0.5 moa at about 3,100 fps, then it will still be a viable option in the field.

I also have some 105 grain bullets to test that were made here in Oz by Garry Little. They are 1.3 inches in length, and have the same profile as the Sierra MatchKing. However, as they also have the J4 jacket, I tend to believe that they will behave similarly to Richard's 100 grain ULD which were also built on the J4 jacket.

Your comments about the ability of the 100 grain Wildcat in the wind is encouraging, as I find that is much more of a factor in the field than the trajectory.

However, until my .224 Clark is built, I have the job of getting the 7 twist Krieger barrel in my 257Weatherby to shoot. This weekend I will be breaking in the barrel and then testing a few loads of H870 with Richard's 156 grain ULD. I am hoping that I will still be smiling after testing on Sunday.

I Look forward to hearing more reports on your progress with the .224 Dasher. Regards, Brian.
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