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7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

 
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  #911  
Old 06-27-2012, 05:02 PM
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Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by Nvhunter View Post
Lefty,

Thanks for the response. I am not looking to replace the barrel right now. I would like to get hold of a good barrel maker that has good experience with this type of caliber. A few conversations and I should be able to decide upon the design for a good accurate barrel. I am looking this early because of the wait time. I expect up to a several month wait for a barrel to be built, backorders and all.

I am moving to 200,300,400 yds later this week. I expect a good Zero range will be 300 yds. Thanks for the advise and happy shooting.
I also have a Sako 75, V action, and mine has a 26 inch barrel. ( actually 25, 5/8 to be exact.) But from your posting, I wouldn't change that barrel yet. Your accuracy seems to be very good, and with a partition at that!!!! Leave that baby just like she sits!! You may be able to get a little more speed, but if you can't, leave it alone.
Is your gun stainless, and do you have the synthetic stock? Mine is stainless, with the synthetic stock, and is very accurate. A bit fussy with it's load, but as with anything else, once you find it, you are golden. Barrel cleans very easily, and can go quite a while before it really does need to be cleaned. Aftermarket stocks are few and far between, and pricey too!
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AIM SMALL,MISS SMALL. 7 STW
LIFE IS TOO SHORT! AND WE ARE A LONG TIME DEAD!!!
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  #912  
Old 06-27-2012, 05:26 PM
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Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by lizardsinep View Post
I have 7mag dies , do u set it as usual to bump it? or do u just do a FL size?
I havnt seen new stw win brass here (canada) in 10yrs
My other problem is my throat , max oal to load in my gun is about 3.645 BUT I dont touch the lands till 3.702 ...with a .20 (3.682)jump Iam still .37 to long !!
Your barrel is free bored, just ahead of the loaded round. You will not be able to touch the riflings, and still fit into the box magazine. Most of the super mags are free bored, otherwise, the speed wouldn't be what they are, and the pressures could easily skyrocket. I seat my bullets .010 under max box length, and manipulate the load until it shoots accurately. I have never had problems getting one to shoot, and shoot well. These are one of the most SHOOTABLE rounds that I have ever shot, and are very responsive, if you know how to read the targets, brass, and gun. Above all, this is a HUNTING round. ( a very accurate one, I might add), so I always make them fit in the magazine as they were intended.
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AIM SMALL,MISS SMALL. 7 STW
LIFE IS TOO SHORT! AND WE ARE A LONG TIME DEAD!!!
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  #913  
Old 06-27-2012, 10:27 PM
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Join Date: Jun 2008
Posts: 79
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

7STW,

Mine is not a stainless. It is blue. Just like all it's brothers. It has the original Sako Hunter stock. It is a 7STW (typo in the first post). I installed a NEAR MFG MOA rail and Leupold III 40mm for the scope. If I can figure out this photo thing I will post a picture. I am happy with the solid mount of the NEAR MFG one piece rail, but have to eject cautiously so the brass is not dented by the rail during extraction.

You are correct on running a dirty barrel. Mine likes at least 3 loads before the group tightens. This is the first rifle I have ever had that really likes a dirty barrel. My Voere 30.06 shoots better when it is clean. Each rifle has it's own personality.

I had worked up to 78 grains of H1000. The H1000 78 grain shot an average of 3004 fps in an 8 shot run (highest 3030 lowest 2989). However, the grouping opened up to 1.1 inch. Could have been the load, could have been me. It seems to like the 77 grain so far.

This weekend should bring no wind at first light. I will be firing 77 / 77.5 and 78 grains. I would prefer a bit lower speed for this fall Mule Deer hunt. A hot load in this 7STW can create carnage at distances less than 300 yards. I have jumped younger deer in these Nevada mountains as close as 30 yards, but the big boys like to stay at least 500 yards from me.

I have ran the newer Barnes TSX, Nosler ballistic tips and other new style bullets. I listen to hunting and shooting podcasts at work. An interview from one long time hunter that has taken every huntable species in N. America said he has always received consistent performance from that Nosler Partition. I know it is an old style bullet, but it works. I hunt for grub and need consistency during hunt season. Following hunt season I will be pushing newer style bullets that have a better BC at faster speed. I approach hunting deer and target shooting each differently.
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  #914  
Old 06-28-2012, 12:44 AM
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Location: Redlands CA
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Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

[QUOTE=Nvhunter;667285]Range Data: Rifle 7mm SAKO V Hunter 75, 24 inch barrel. Temp 80 f, Elevation 2700 ft, Humidity 5%, 100 yards, Nosler Partition 160 grain, H1000 77 grain. Chrono FPS avg of 6 shots 2980 fps. Highest 2996 fps. Lowest 2949 fps. 3 shot Group 0.061 inch.

If you want more velocity, try 7828, but if you are shooting.061" for three shots, that is one very small hole, you must have to use a mic on your groups! Nice shooting.
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  #915  
Old 06-28-2012, 12:47 AM
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Join Date: Jan 2011
Location: Redlands CA
Posts: 148
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by lizardsinep View Post
I have 7mag dies , do u set it as usual to bump it? or do u just do a FL size?
I havnt seen new stw win brass here (canada) in 10yrs
My other problem is my throat , max oal to load in my gun is about 3.645 BUT I dont touch the lands till 3.702 ...with a .20 (3.682)jump Iam still .37 to long !!
Now you can look at that issue a couple of ways, 1. Too large a jump for the bullets you have been using or 2. Proper seating for the Matrix 190 gr super high bc bullet.

See the barrel isnt wearing out, it is maturing into a different kind of shooting.
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  #916  
Old 06-28-2012, 07:27 AM
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Join Date: Jun 2008
Posts: 79
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

[QUOTE=Big Jake Duke;667743]
Quote:
Originally Posted by Nvhunter View Post
Range Data: Rifle 7mm SAKO V Hunter 75, 24 inch barrel. Temp 80 f, Elevation 2700 ft, Humidity 5%, 100 yards, Nosler Partition 160 grain, H1000 77 grain. Chrono FPS avg of 6 shots 2980 fps. Highest 2996 fps. Lowest 2949 fps. 3 shot Group 0.061 inch.

If you want more velocity, try 7828, but if you are shooting.061" for three shots, that is one very small hole, you must have to use a mic on your groups! Nice shooting.
Dern! Second Typo. 0.61 inch group. Sorry about the typo.
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  #917  
Old 06-28-2012, 09:22 AM
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Join Date: May 2012
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Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

[QUOTE=Nvhunter;667793]
Quote:
Originally Posted by Big Jake Duke View Post

Dern! Second Typo. 0.61 inch group. Sorry about the typo.
I kinda figured that. When she breaks 1 moa for 5 shots, then it might be time. If your throat is showing erosion, that is. That's when I dropped my 7rum like a hot potato. The groups doubled in size for both my 140 and 175 grain loads and broke the moa mark for 5. Turned her for a lh 300rum(the7rum was a righty). The interesting thing on that rifle is she got faster as she wore out. It started life at 3425 fps with a 140. By the time it dies, she was 100 fps faster.
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