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3750 fps 257 weatherby

 
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  #8  
Old 07-23-2013, 06:43 PM
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Location: spring lake Michigan
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Re: 3750 fps 257 weatherby

I hear what you are saying it seems really fast to me also. I am gonna try again later this week. I double checked the chrono and it seemed to be on. My 223 is right where it has been for evbut ery other chrono always around 2900 give or take. Forgot to mention it is a 28 inch barrel but still seems to good to be true. Should I move the chrono to say 50 yards and see what it reads. I was expecting around 3400 to 3500 with the longer barrel but this seems crazy fast even for factory ammo.
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  #9  
Old 07-24-2013, 05:01 AM
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Re: 3750 fps 257 weatherby

10 Yards should be plenty to make sure your not reading muzzle blast.
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  #10  
Old 07-24-2013, 07:46 AM
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Re: 3750 fps 257 weatherby

Quote:
Originally Posted by snox801 View Post
I hear what you are saying it seems really fast to me also. I am gonna try again later this week. I double checked the chrono and it seemed to be on. My 223 is right where it has been for evbut ery other chrono always around 2900 give or take. Forgot to mention it is a 28 inch barrel but still seems to good to be true. Should I move the chrono to say 50 yards and see what it reads. I was expecting around 3400 to 3500 with the longer barrel but this seems crazy fast even for factory ammo.
I pulled up your old post asking for load for the 257Wby

257 weatherby mag load data.

Are you using AZShooter loads?
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  #11  
Old 07-24-2013, 08:21 AM
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Re: 3750 fps 257 weatherby

No this was with weatherby factory loads. I will be working up loads later this year after work slows down a bit. I am expecting slower handloads as many people state. I will be focusing more on accuracy than speed after all doesn't help to be fast if you cant hit anything.
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  #12  
Old 07-24-2013, 08:51 AM
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Re: 3750 fps 257 weatherby

Quote:
Originally Posted by snox801 View Post
No this was with weatherby factory loads. I will be working up loads later this year after work slows down a bit. I am expecting slower handloads as many people state. I will be focusing more on accuracy than speed after all doesn't help to be fast if you cant hit anything.
I read your first post and figured might of been mistake anyway good luck.
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  #13  
Old 07-24-2013, 08:09 PM
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Join Date: Sep 2012
Location: spring lake Michigan
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Re: 3750 fps 257 weatherby

After reading another post, I am gonna start fresh. Im gonna put my chrono under a easy up to eliminate the sun issues. Next gonna make sure everything is level and square. That should eliminate some of the variables that my be giving me high readings. Ill repost after another round of testing hopefully this week. Thanks for all the feedback im learning a ton from this site.
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