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Guesses on muzzle velocity, 300 RUM

 
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  #8  
Old 12-05-2009, 03:34 PM
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Re: Guesses on muzzle velocity, 300 RUM

Thank you all. I'm just trying to get an idea of the trajectory and power of this bullet, to compare to other loads. I'm going to form my own ballistics card on the range, just trying to get some ball park numbers. I was hoping to be close to 3100 with this load, and hope to increase that if it will still group well. Some more loading and a chronograph will help, and shooting on paper out to my 700 yard field edge. Just excited about the new rifle, and trying to plug in ballistics data on a rainy day.
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  #9  
Old 12-05-2009, 03:46 PM
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Re: Guesses on muzzle velocity, 300 RUM

A chronograph can be acquired for less than 100 bucks, it is wise investment
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range it,check the wind, dial in correction, aim and only one shot
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Old 12-05-2009, 04:02 PM
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Re: Guesses on muzzle velocity, 300 RUM

Quote:
Originally Posted by jwp475 View Post
A chronograph can be acquired for less than 100 bucks, it is wise investment
I would try to pick up or borrow a chrono. What ballistic program are you using to do this?
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  #11  
Old 12-05-2009, 05:38 PM
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Re: Guesses on muzzle velocity, 300 RUM

Right now I'm messing with the trial version of shoot 3.2. What programs do you all recommend?


I didn't realize that a chronograph was that inexpensive, I'll get one. That would come in pretty handy.
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  #12  
Old 12-05-2009, 11:38 PM
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Re: Guesses on muzzle velocity, 300 RUM

I use Exbal. It has a trajectory validation built into it that will adjust and give you what they consider a more precise velocity. If you dial in at say 600 yds and hit 4" low, you can enter this into the program and it will adjust and give you new readings for your drop chart. I have been using an old Pact chrono and it has done well for the last several years but is now starting to act up a bit. I think that I will replace it soon with a CED.
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  #13  
Old 12-05-2009, 11:50 PM
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Re: Guesses on muzzle velocity, 300 RUM

Quote:
Originally Posted by Moman View Post
I would try to pick up or borrow a chrono. What ballistic program are you using to do this?
I use Exball on my desk top as well as on my hand held that I take into the field for real time info.

With Exbal it locks in your sightin info (barometric pressure, temp, humidity) and undr field conditions corrects your info when you go from sea level as I do to the mountains to hunt




and it works


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range it,check the wind, dial in correction, aim and only one shot
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  #14  
Old 12-06-2009, 06:20 AM
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Re: Guesses on muzzle velocity, 300 RUM

Exbal looks fantastic. I think that program and a CED pro chronograph would make great early Christmas presents for me. They would put me a long step ahead of my buddies. 2010 is looking really bad for the deer.
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