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Pushing Berger 7mm Berger 168s or 180s??

 
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  #22  
Old 08-26-2009, 07:39 AM
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Re: Pushing Berger 7mm Berger 168s or 180s??

Good topic, I'm working on a 7 rum and hoping to shoot the heavies way out there. I only have 10 bullets down the tube so far, so I have a ways to go.
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  #23  
Old 08-26-2009, 05:05 PM
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Re: Pushing Berger 7mm Berger 168s or 180s??

Only just spotted this thread.
I've shot hundreds of game animals with the 7mm 180 Bergers at muzzle velocities of 3200 fps up to 3460 fps, at ranges out to 1425 yards. Until recent testing of the Wildcat alloy tip 338 projectiles that are now no longer available, the Bergers have been the best killing longrange projectile available. I'm talking 180gn moly bergers from a large order I made maybe 10 years ago that I'm still using, so with the original jacket thickness.
This is on Sika and Red deer, and Himalayan Tahr and Chamois. These game animals run from Whitail size up to almost Elk size for comparison.
The 180 Berger has consistantly expanded at ranges over 1000 yards and nothing else I've tried has. (Other than unavailable Wildcats) I have yet to have a failure up close with them either, but haven't had to use them on a bad angle on a big animal yet, I use mainly AB's for that application.
I was pleased they held together at 3460fps, but have had no problems at all and grouping superbly. This is out of a 9" twist 30" Lilja. The G1 BC (not that we should be talking these anymore!) averaged .74 to 1000 yards. Run those numbers, pretty impressive ballistics!
I have some 189 Caut's to try in some Broughton 8" twist canted lands that don't like the Bergers as much, but haven't shot them at longrange yet. These Broughton's love the 200gn Wildcats accuracy wise, but ballistically the 180gn Berger's way faster velocity is better out of my barrels.
Greg
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  #24  
Old 08-26-2009, 09:42 PM
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Re: Pushing Berger 7mm Berger 168s or 180s??

Thanks Greg, I have tried some 175 smks, Bergers not here yet. and they were not grouping real well at 3250+, 160 AB showed some promise this am.

I basically finished some brass prep and am waiting for the Bergers and some of Lens Caut's to show.
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  #25  
Old 08-27-2009, 09:09 PM
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Re: Pushing Berger 7mm Berger 168s or 180s??

NZ Longranger

What cartridge are you using to push the 180 3400+?
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  #26  
Old 08-27-2009, 11:01 PM
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Re: Pushing Berger 7mm Berger 168s or 180s??

Whats a 7mm RHB?
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  #27  
Old 08-27-2009, 11:57 PM
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Re: Pushing Berger 7mm Berger 168s or 180s??

Quote:
Originally Posted by 260shooter View Post
NZ Longranger

What cartridge are you using to push the 180 3400+?
260,
We're using something we call the 7mm Super Fatso, which is a full length version of the 7mm Fatso - so its a 7mm/338 Lapua improved, 2.7" long vs the Fatso's WSM length. Its very similar to Kirby's 7mm AM. Used to just call it the 7mm/338 imp, but after the Fatso name stuck to the short version, the Super pretext seems to have stuck on the full length version.
It pushes the 180 Berger at 3460fps out of a 30" barrel, verses 3250 - 3300fps for the 200gn Wildcat ULD.
Greg
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  #28  
Old 08-28-2009, 02:28 PM
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Re: Pushing Berger 7mm Berger 168s or 180s??

Adam 32 ;

The 7mmRHB is a RUM case shortened to 2.555 and Improved. It has a 35* shoulder with minimum body taper. Just a different way to do the same thing we're all trying to do, ( shoot accurately at long range ) but with my own cartridge design....... RHB
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