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Rifles, Bullets, Barrels & Ballistics Applied Ballistics

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7mm AM

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  #8  
Unread 12-24-2009, 04:19 PM
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Re: 7mm AM

Tightline2001, welcome, glad to have you here. Just to throw a few into the mix there's the 338 EDGE-300 rum improved and 338AX-338 Lapua Improved by Kirby Allen...Worth a look.

Last edited by Chas1; 12-24-2009 at 10:39 PM. Reason: typo-330 rum should read 300 rum
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  •   #9  
    Unread 12-24-2009, 06:09 PM
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    Re: 7mm AM

    If you are only going to be shooting out to 1k, you could get by with something less. But, they are nice to shoot! 175g Sierra Matchking at 3450 fps.
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      #10  
    Unread 12-25-2009, 05:32 PM
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    Re: 7mm AM

    ive always had a thing for big caliber rifles. plus i love watching the deer just drop in there tracks! how does that 7mm AM compare to my .30-378 wby? anyone have any idea? my cousin has been after me for years to go to colorado with him to mule deer and elk hunt so it would be nice to have something that i know i could get it done with. plus all i have on my .30-378 is a 4.5x14x50mm vxII
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      #11  
    Unread 12-25-2009, 06:23 PM
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    Re: 7mm AM

    Well, you really don't NEED a lot of scope, Kirby's 7mm AM that I shot had a 10x Mark 4 scope on it when I shot it. My first time shooting his gun, the first two shots from his gun went into a 2 3/4" group at a bit over 600 Yds.

    If you have a ballistic program, compare what you're shooting to a .284 200g bullet at 3250 to 3300 fps that has a bc of .9
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      #12  
    Unread 12-25-2009, 06:24 PM
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    Re: 7mm AM

    The 7AM with a 200 grain bullet and the 30-378 with a 240 SMK are very similar if similar barrels and reloading techniques are used. Both will perform better with a longer barrel than 26 inches. The problem is as Brian Litz has described, the 30 caliber just doesn't have a really good long range bullet. The 240 SMK is a fat dog wallowing through the air. It needs a better ogive shape

    I spent a lot of time trying to decide between a custom 30-378 and a custom 7AM being as I am a big Weatherby fan and a big 7mm fan. It was hard to decide. If both are custom rifles it is a hard decision but comparing a custom 7AM against a factory 30-378 the needle points to the custom rifle because of accuracy.

    There were a few reports of some good aluminum tipped bullets in 30 cal but it was hard to verify the credibility of the reports ( and that is putting it mildly).
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      #13  
    Unread 12-25-2009, 06:48 PM
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    Re: 7mm AM

    yea my wby accumark has a 26 inch barrel with and i have the trigger set at 1.9 lbs. at 100 yds all three shots are touching. i am shooting the 210 berger vld with 98 grains of h1000 and fed 215m primmers. they are shooting 2905 fps

    what sized barrel should i go with if i do go with a 7mm am? before i spend the money i just want to make sure i am improving on what i have. i dont want to get rid of my wby everything i have shot with it out 360 yds has never taken a step.

    i guess what i am getting at is should i build up my accumark or get the 7mm am?

    you cant never have enough rifles though!
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      #14  
    Unread 12-25-2009, 07:05 PM
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    Re: 7mm AM

    My feeling is you should just go ahead and email Kirby and have this conversation with him. He is a very honest guy and will not sell you a rifle that is not what you need or want. If you want a 7AM and that is what makes you happy, he will build you a very great rifle.
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