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How did I get an extra 150fps? 300Wby

 
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  #22  
Old 10-30-2013, 08:07 PM
Edd Edd is offline
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Re: How did I get an extra 150fps? 300Wby

I thought he was a shooter on a Palma team.
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  #23  
Old 10-30-2013, 08:47 PM
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Re: How did I get an extra 150fps? 300Wby

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Originally Posted by Edd View Post
I thought he was a shooter on a Palma team.
Bart B spend 20yr in the Navy shooting that's how he got started. He was just a Palma team member and he had coaches like every other team member after he retired.

Bart B can tell you more about his navy shooting and what he won and score even picture since he was top navy shooter. I'm sure Bart B can post when he was selected for the Palma team as they do write up on each member and he can post that also.
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  #24  
Old 10-31-2013, 06:59 AM
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Re: How did I get an extra 150fps? 300Wby

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Originally Posted by TXFlyer View Post
This may be a stupid question, but on the surface it's perplexing for a simpleton like me.
Here's the data, an ideas what may be causing this?

300 Weatherby Accumark, same gun, same brass/primers, same powder load, same OAL:

168 gr Berger Classic Hunter (BC .496) = 3125fps

168 gr Nosler BT (BC .490) = 3278fps

I have a theory but tell me what you think.
You are getting more speed because the nosler is creating higher pressure than the Berger.
I highly doubt it is run to the rifling though, but bullet construction. Nosler pills tend to have a pretty stiff base (the old ones before the bt were called "solid base") and often create more pressure than sierra in my 7stw. I suspect it is the same for you with your 30roy.
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