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

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  #1667  
Unread 10-18-2012, 04:05 PM
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Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Thanks 7stw. Really appreciate the info
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  •   #1668  
    Unread 10-18-2012, 04:26 PM
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    Join Date: May 2011
    Location: Damascus, MD
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    Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

    Quote:
    Originally Posted by Lefty7mmstw View Post
    I've been telling people to go to rl25 here for a while.
    I'd work up to 81 slow with the 160 AB; I only use 82 grains with the 140 and it's full pressure. Nos. quotes 81 as top charge for the 140 in their book.
    Thanks, I'll keep that in mind.

    I think I'm going tomorrow morning. I'm still new to this, I've just been using my chrono for velocity numbers if too high and I look for if my bolt is hard to raise. Also I look at the primers to see if they are flatten.

    What other kind of pressure signs should I look for?

    Is there any type of gauge available to read the pressure?

    Thanks!
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      #1669  
    Unread 10-18-2012, 04:43 PM
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    Location: West Terre Haute Indiana
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    Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

    Quote:
    Originally Posted by gamehawker View Post
    Thanks, I'll keep that in mind.

    I think I'm going tomorrow morning. I'm still new to this, I've just been using my chrono for velocity numbers if too high and I look for if my bolt is hard to raise. Also I look at the primers to see if they are flatten.

    What other kind of pressure signs should I look for?

    Is there any type of gauge available to read the pressure?

    Thanks!
    Read your primers They will tell when your getting close to going overboard
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    Remember.....Dont argue with stupid people,They will drag you down to their level and then win by experience
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      #1670  
    Unread 10-18-2012, 05:05 PM
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    Join Date: Jan 2010
    Location: Leominster mass, originally Salisbury Maryland
    Posts: 1,324
    Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

    Quote:
    Originally Posted by gamehawker View Post
    Thanks, I'll keep that in mind.

    I think I'm going tomorrow morning. I'm still new to this, I've just been using my chrono for velocity numbers if too high and I look for if my bolt is hard to raise. Also I look at the primers to see if they are flatten.

    What other kind of pressure signs should I look for?

    Is there any type of gauge available to read the pressure?

    Thanks!
    game hawker, there are a number of things to watch and feel for. Primers are a obvious thing to watch, but sometimes they WON'T flatten, or bell out, but when you seat a new primer, you may notice that it fits a little sloppy. Stiff extraction is another obvious one, but also a bright shiny line around the brass above the belt, can be a sign as well. Any combo of those, and the gun is telling you , Whoa Bessy, slow down a little. Abbreviated brass life as compared to what you have been getting is also a sign, but then again, the brass we get now isn't as good as it was ten years ago either.
    Most of all, you must throw common sense in the mix too. If you use a chrono, and you know it is accurate, and you are getting insane velocities," there's your sign"
    I have read some of the load data the some guys are using, and there's no doubt in my mind, that someone here recently was using something that I'm sure was approaching or exceeding 70-75,000 psi !
    Unfortunately, I don't think that there is a pressure sensor that we as hunters / shooters can afford. I have heard of there use, but I think that a modification has to be made to the barrel. I could be wrong, but I think that to be true. So, again, that is where the " common sense" thing comes in to play. I'd rather be a mile safe, then a inch sorry. Lots of loading manuals, compare all info,and talk to the " Brethren".
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      #1671  
    Unread 10-18-2012, 05:15 PM
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    Location: West Terre Haute Indiana
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    Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

    Quote:
    Originally Posted by 7stw View Post
    game hawker, there are a number of things to watch and feel for. Primers are a obvious thing to watch, but sometimes they WON'T flatten, or bell out, but when you seat a new primer, you may notice that it fits a little sloppy. Stiff extraction is another obvious one, but also a bright shiny line around the brass above the belt, can be a sign as well. Any combo of those, and the gun is telling you , Whoa Bessy, slow down a little. Abbreviated brass life as compared to what you have been getting is also a sign, but then again, the brass we get now isn't as good as it was ten years ago either.
    Most of all, you must throw common sense in the mix too. If you use a chrono, and you know it is accurate, and you are getting insane velocities," there's your sign"
    I have read some of the load data the some guys are using, and there's no doubt in my mind, that someone here recently was using something that I'm sure was approaching or exceeding 70-75,000 psi !
    Unfortunately, I don't think that there is a pressure sensor that we as hunters / shooters can afford. I have heard of there use, but I think that a modification has to be made to the barrel. I could be wrong, but I think that to be true. So, again, that is where the " common sense" thing comes in to play. I'd rather be a mile safe, then a inch sorry. Lots of loading manuals, compare all info,and talk to the " Brethren".
    I'll second that
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    Remember.....Dont argue with stupid people,They will drag you down to their level and then win by experience
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      #1672  
    Unread 10-18-2012, 06:41 PM
    Gold Member
     
    Join Date: May 2011
    Location: Damascus, MD
    Posts: 923
    Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

    Quote:
    Originally Posted by 7stw View Post
    game hawker, there are a number of things to watch and feel for. Primers are a obvious thing to watch, but sometimes they WON'T flatten, or bell out, but when you seat a new primer, you may notice that it fits a little sloppy. Stiff extraction is another obvious one, but also a bright shiny line around the brass above the belt, can be a sign as well. Any combo of those, and the gun is telling you , Whoa Bessy, slow down a little. Abbreviated brass life as compared to what you have been getting is also a sign, but then again, the brass we get now isn't as good as it was ten years ago either.
    Most of all, you must throw common sense in the mix too. If you use a chrono, and you know it is accurate, and you are getting insane velocities," there's your sign"
    I have read some of the load data the some guys are using, and there's no doubt in my mind, that someone here recently was using something that I'm sure was approaching or exceeding 70-75,000 psi !
    Unfortunately, I don't think that there is a pressure sensor that we as hunters / shooters can afford. I have heard of there use, but I think that a modification has to be made to the barrel. I could be wrong, but I think that to be true. So, again, that is where the " common sense" thing comes in to play. I'd rather be a mile safe, then a inch sorry. Lots of loading manuals, compare all info,and talk to the " Brethren".
    Thanks for the advice.

    Do you think 3,300 fps velocity is too high for 160 Accubonds?

    DoubleTap Factory Ammo for the 7mm STW in 160 Accubonds advertises 3,305 fps velocity.

    Doubletap Ammo 7mm STW 160 Grain Nosler AccuBond Spitzer Box of 20
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      #1673  
    Unread 10-18-2012, 07:33 PM
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    Join Date: Aug 2004
    Location: Enumclaw, Washington
    Posts: 46
    Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

    I have been monitoring and contributing to this post for quite some time. I see way too much concern, IMHO, about velocity. What we really need is accuracy. I used to shoot a lot of 1000 & 600 yard bench rest. I used a 6.5/284 Norma shooting a 142 gr. Sierra Match King @ 2850 fps. This load was supersonic well past 1000 yards. Accuracy was always sub. 1 MOA, usually much better if I was having a good day.

    Anyway loading until you are blowing primer pockets, just does not compute to me ? The 7 STW has proven to be an extremely accurate cartridge for me. My goal is to get the most accurate load with a hunting bullet, shooting as few rounds as possible. A good barrel only has so many shots in it. I want to use this cartridge shooting big game. I have a lot of rifles that are way easier on barrels than my 7 STW.
    Kreiger barrels are getting pretty hard to come by. 3100 fps with a 160 gr. Accubond is enough to make
    real happy, especially when it is shooting 1/4 MOA at 400 yards.
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