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Load for 7mm wsm

 
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  #1  
Old 12-17-2009, 06:21 PM
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Join Date: Jan 2009
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Load for 7mm wsm

I recently picked up a 700 with a shilen 7mm wsm barrel on it. I dont know the twist yet as I havent found a few minutes of time to slug the barrel. Any of you have some good accurate load for yours? I hope the gun will shoot well. I tossed a random load together of IMR 4831 with a Nosler 120 BT's on top of it and it shot a minute. I want to believe the rifle will do better than that. I mounted some Hart 1 piece bases and rings on the gun, lapped them, and put a Nikon Monarch 3-12x42 scope on it. i'm not lookin to shoot to the moon with the gun, maybe just a few hundred yards.
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  #2  
Old 12-17-2009, 06:56 PM
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Location: Sacramento, CA
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Re: Load for 7mm wsm

what bullets do you want to shoot?

The Nosler manual is usually pretty good data with their "most accurate powder tested" recomendations. If you don't have a nosler manual let me know.

I'm shooting the 150 ballistic tips with H4831sc just below the nosler max.
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  #3  
Old 12-17-2009, 07:08 PM
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Location: Central Washington
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Re: Load for 7mm wsm

Hunting vs Target?

168 Berger VLD's H4831SC 61 grains 2905 FPS from my 26" Hart.

180 Berger VLD's H1000 64 grains 2930 FPS from my 26" Hart.

Both shoot sub 1/2 minute groups at 100 and 1/2 MOA or less out to 400 plus.

Bill
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The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.

Thomas Jefferson

http://waitesandbalances.blogspot.com/
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  #4  
Old 12-17-2009, 07:14 PM
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Re: Load for 7mm wsm

Quote:
Originally Posted by bwaites View Post
Hunting vs Target?

168 Berger VLD's H4831SC 61 grains 2905 FPS from my 26" Hart.

180 Berger VLD's H1000 64 grains 2930 FPS from my 26" Hart.

Both shoot sub 1/2 minute groups at 100 and 1/2 MOA or less out to 400 plus.

Bill
how far did you jump/jam the 168's? I was using them with retumbo .007 off, never could get consistently tight groups. Maybe I should try H4831sc with these, but I was concerned about poor velocity. Did you try multiple powders with these, or just got lucky with your starting choice?
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  #5  
Old 12-17-2009, 08:55 PM
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Join Date: Jun 2007
Location: Central Washington
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Re: Load for 7mm wsm

Actually the 168 load was developed for me by Joel Russo, when I bought the rifle.

I've tried Reloder 25, 22, and 17, but so far that load is the best for the 168's.

It is loaded .015 off the lands.

The 180 load I developed, and it is my 1000 yard F class load. It shoots best .007 off the lands, go figure! Once again, I tried all 5 powders.

I THINK Reloder 17 MIGHT give me a good load with the 180's, but I'm still playing with it. I also think it is a little faster than H1000, but as I said, I'm still working with it for the 180's.

Here is a group with the 180's at 200 yards, first shot was top right, second was bottom right, then the group is 6 shots. I was developing the load, trying to find ideal COAL. I usually zero at 400 yards, so I had to adjust for 200, thus the first 2 shots.




Bill
__________________

The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government.

Thomas Jefferson

http://waitesandbalances.blogspot.com/
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  #6  
Old 12-19-2009, 08:33 PM
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Join Date: Oct 2009
Location: N.E. Fl
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Re: Load for 7mm wsm

A cleaning rod with a brush will help tou find the twist rate.

Insert rod with brush into the rifling, at the end of the bore guide make a mark with a sharpie, measure 12" back and make another mark with your sharpie. Make sure to mark the top center of the rod next to the handle, some of them come with a dot stamped in front of the bearing. Now push the rod down the bore to the next mark and count the revolutions of the rod.

You now know what twist your barrel is and will be better equipt to choose a bullet of propper weight
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  #7  
Old 12-19-2009, 11:02 PM
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Join Date: Dec 2001
Location: Pennsylvania
Posts: 230
Re: Load for 7mm wsm

Quote:
Originally Posted by Scout1 View Post
A cleaning rod with a brush will help tou find the twist rate.

Insert rod with brush into the rifling, at the end of the bore guide make a mark with a sharpie, measure 12" back and make another mark with your sharpie. Make sure to mark the top center of the rod next to the handle, some of them come with a dot stamped in front of the bearing. Now push the rod down the bore to the next mark and count the revolutions of the rod.

You now know what twist your barrel is and will be better equipt to choose a bullet of propper weight
Or tight patch pushed near end of barrel then start to pull back, wrap tape around rod with the ends stuck together on top touching bore guide, pull back until on top again. Distance between bore guide and tape is twist.

For hunting I like 162 Amax with H1000 in a 9.25 twist 7wsm.
HPA

Last edited by HoytemanPA; 12-19-2009 at 11:07 PM.
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