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Tell me about the 7mm am.

 
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  #1  
Old 05-29-2009, 08:11 PM
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Tell me about the 7mm am.

I would like to hear about the 7mm am. The valocity's, parent case, ect. Give me the low down on it.
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  #2  
Old 05-29-2009, 08:26 PM
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Join Date: Dec 2002
Location: mathias wv
Posts: 985
Re: Tell me about the 7mm am.

parent case is a 338 lapua mag, with some body taper removed and the shoulder moved slightly foreward and sharpened. My cases have an H2o capacity of 122 gr. it runs 160 noslers at 3575 fps, WC 200's at 3230 fps, these aren't hot loads.
It is the most accurate, least temperamental rifle I ever fooled with, shoots anything very well, the stuff it likes will scare ya.
My rifle has taken 17 whitetails in 3 seasons the closest being 307 yards, the farthest at 1,350 yards.
RR
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  #3  
Old 05-29-2009, 11:38 PM
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Join Date: Jun 2005
Location: Yakima, Washington
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Re: Tell me about the 7mm am.

Quote:
7mm Allen Magnum
338 Lapua Magnum parent case, necked down to 7mm and fireformed to min body taper and shoulder angle.
140 gr.(3800 fps) up to 200 gr. ULD RBBT(.900 bc) 3200 to 3350 fps from 26 to 30 barrel lengths
Designed for long range big game hunting up to and including elk and moose. Has been used effectively on elk out to 1300 yards and has also proven one of the most ballsitically potent rounds in use today including the 277 Allen Magnum and the 338 Allen Magnum. Has proven capable of moa accurate out to 1000 yards and 1 moa accurate out to 2800 yards in good conditions.
Appropriate powders: H-Retumbo, H-50BMG, H-870, H-US869, AA8700 and WC87
I agree whole heartedly with RR. It's the absolute easiest "high horsepower" long range round I've ever used and loaded for.

And now, with Wildcat Bullets starting back up, we'll have the 200 grain WC's back and the long range thumpings will continue.

I've never had a deer stop a bullet but did have an elk stop one of the 200 grain Wildcats after it traveled almost the full length of its body from junction of neck and left front shoulder into the right rear hind quarter.
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Old 05-29-2009, 11:45 PM
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Location: Yakima, Washington
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Re: Tell me about the 7mm am.

Works pretty good on killer rocks also. This is at 994 yards.

994 Oh Bleep Moment video by ss7mm - Photobucket
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  #5  
Old 05-31-2009, 03:29 AM
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Join Date: Feb 2008
Location: IOWA
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Re: Tell me about the 7mm am.

I have a 7 STW on a trued Rem 700 action. When the barrel is burned out, can this be converted to a 7 AM, or does it take a bigger action ?
Also, what is the COAL you guys are running in your 7AM ?
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  #6  
Old 05-31-2009, 06:34 AM
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Location: mathias wv
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Re: Tell me about the 7mm am.

mine with the 160 AB's are loaded to 3.675, the same length as my 140 gr 7 mm STW loads. your 700 action should work fine, mine is on a 700. An extended mag box would be nice though.
RR
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  #7  
Old 05-31-2009, 08:31 AM
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Re: Tell me about the 7mm am.

Ridgerunner,
I already have a wyatt box on the 7 STW, so that won't be a problem.
If I look at doing this down the road, I would want to jump up to a heavier bullet than the 168gr Berger's I am shooting now. 180's or heavier would certainly outperform what I am shooting now.
However, the 7 STW is no slouch !
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