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7 mm hart magnum

 
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  #1  
Old 09-13-2013, 07:16 PM
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Join Date: Feb 2008
Location: pa
Posts: 24
7 mm hart magnum

Does any one own one of these?
Thinking of building one on a 700 action.hart says they will rechamber a seduro for me.looking for your info before going further on this.
Gary b
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  #2  
Old 09-13-2013, 07:56 PM
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Join Date: Dec 2012
Location: Charleston, WV
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Re: 7 mm hart magnum

My friend built a 700 action and Hart barrel w/ brake in a 7mm ultra mag. It's a nail driver. Not sure what the stock is. Shoots one ragged hole at 100 yards. Took him almost a year to get the load right though. I can't really kick him too much, took me 5 months to get the right load for my LRH.
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  #3  
Old 09-13-2013, 08:27 PM
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Join Date: Feb 2008
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Re: 7 mm hart magnum

Sorry,
i am talking about the custom cartrige or wildcat 7 mm hart with 40 degree shoulder.
Gary b
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  #4  
Old 09-14-2013, 01:31 AM
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Re: 7 mm hart magnum

Ann are you talking about the 7x61 Sharp and Hart Magnum?

Very similar in peformance to the 7mm Rem mag/7mm Dakota (between the two) if I remember right.

Had a friend who shot one made by Hart many years ago primarily as an antelope and open country coyote hunter.

It performed extremely well for him.
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  #5  
Old 09-14-2013, 12:27 PM
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Location: Eastern Wheat Field, CO
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Re: 7 mm hart magnum

It looks like the 7x61 has the same power as the 280 Rem.
162 sst @ 2900 each.

And the 280 Rem is a whole lot more common if you ever needed to
buy ammo when you are out of town.

Just sayin'
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  #6  
Old 09-14-2013, 04:19 PM
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Join Date: May 2008
Location: South of Canada and North of Wyoming
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Re: 7 mm hart magnum

Quote:
Originally Posted by WildRose View Post
Ann are you talking about the 7x61 Sharp and Hart Magnum?

Very similar in peformance to the 7mm Rem mag/7mm Dakota (between the two) if I remember right.

Had a friend who shot one made by Hart many years ago primarily as an antelope and open country coyote hunter.

It performed extremely well for him.
If it is the 7x61 Sharp & Hart, it is about 5 water gr less capacity than the 7 RM. So more between the 7 RM and 280 or 284, actually, a lot closer to the 7 RM.
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  #7  
Old 09-14-2013, 05:25 PM
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Join Date: Aug 2006
Location: Wyoming
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Re: 7 mm hart magnum

I did some work on a 7mm hart that bobby hart built. If its the one your talking about it is basically just a 7mm rem mag ackley improved. It uses 7 rem mag brass and fire form like any other ackley wildcat. He built it around and recommended the 140 nosler btip with 74 gr of rl22 at around 3450+. I also worked up a load with the berger 180vld at 3100+with h1000. Both of these loads were sub 1/4 Moa. I still have the reloading dies I was actually thinkin of building myself one of these for my light weight carry rifle.
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