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Old 03-15-2007, 08:41 PM
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Join Date: Jan 2004
Location: North Dakota
Posts: 876
Re: New-Rifle-Project-has-been-changed

I think JD was talking about the Berger 180 7mm bullets.With a B.C of .698 I am a huge fan of the 7mm bullets and caliber but you will not be dissapointed with a 30 cal. either.

My recommendation on a 30 cal., would be a plain ol' .300 ultra match, set up for the 210's. Nosler makes some really good cases for the .300RUM at a very reasonable price. If you are set on the .30-.378 weatherby I would recommend an improved version. Also JD's advice on the .300-.338 Lapua is right on. Best wishes on your project and it sounds like your going to have an awesome long range gun.

without God their is no hope for this country
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Old 03-15-2007, 08:54 PM
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Join Date: Nov 2005
Location: Riggins Idaho
Posts: 1,122
Re: New-Rifle-Project-has-been-changed

I got a 338-378 and have found out that the brass dont last long if you are pushing it at all. I would go with the ultra, some people try and improve the ultra. I dont know if there is enough advantage to it though. Also think on the lapua necked down to 30cal to.
I dont know who ever came up with the imaganary word of "Over Gunned"
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Old 03-15-2007, 08:59 PM
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Re: New-Rifle-Project-has-been-changed


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Old 03-15-2007, 09:28 PM
Join Date: Dec 2004
Location: El Reno, OK
Posts: 1,930
Re: New-Rifle-Project-has-been-changed



[/ QUOTE ]

If you go w/the 30/378 or the 300 RUM, I know where you can buy some brass for a reasonable price [img]/ubbthreads/images/graemlins/wink.gif[/img].
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Old 03-16-2007, 06:41 AM
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Join Date: Jun 2001
Location: Potomac River
Posts: 5,057
Re: New-Rifle-Project-has-been-changed


The performance levels of the 7AM and the 30-378 ae very similiar when dealing with shooting animals. Naturally the larger heavier 30 cal bullets will have an advantage at distances beyond 1500 yards.

I am not sure such a high volume case would be a great benchrest cartridge because you have to shoot so fast that heating up the throat will be a problem. Of course I don't shoot benchrest so that is just speculation.

Concerning Norma/Weatherby brass I would say that if you push it to the limits then you pretty much know that the brass is "disposable" just like the powder, primer and bullet. If you run more reasonable loads it will be last longer.

Just my limited experience but the chamber is pretty critical to the accuracy of a weatherby case. A big sloppy factory chamber will lead to difficulties in obtaining desired accuracy. A tight chamber with a special throat cut for the bullet of choice will give you a better chance at being pleased with the accuracy. There are great tales and reams of advice about headspacing off of the shoulder and not the belt. My general belief is that if the chamber is cut correctly then the belt headspace works just fine. Of course if you let the shoulder grow so some cases are head spaced off of the shoulder and some are heaed spaced off of the belt then you may have a problem. In a tight cut chamber with no freebore you will not be able to shoot factory ammo. Nor will you be able to shoot someone elses once fired cases, unless their chamber is smaller than yours.
The Smokin Fur Rifle Club
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Old 03-16-2007, 05:37 PM
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Re: New-Rifle-Project-has-been-changed


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