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Load Question?

 
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  #1  
Old 02-19-2011, 06:57 PM
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Join Date: Feb 2009
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Load Question?

I am wondering why the same load shot out of two different rifles would produce different speeds? I had a 300 Win Mag Mcgowen match grade barrel that shot 73.5 grains of RL 25 with prep. Winchester brass and a Federal Match primer spitting 200 gr. SMK's at 2892 FPS. Three shot groups were a ragged hole at 200 yards on a good day.
Now I have a barrel made by Criterion "Match" same length same twist everything the same and it shoots that same load 150 FPS slower. The accuracy was a little less than my other barrel so I bumped it up a grain to reach the same node I was hitting on the other barrel and it did the trick.
My question is why is it so much slower? Is the barrel not of as good quality? I also noticed it fowels up way worse than any Shillen or Mcgowen match barrels I have or have had.

Just curious that's all

Last edited by TrophyHunter_colorado; 02-20-2011 at 12:54 PM.
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  #2  
Old 02-19-2011, 07:26 PM
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Join Date: Mar 2006
Posts: 847
Re: Load Question?

You have experienced the nature of the beast.
All rifles, barrels, etc although seemingly the same are inherently different.
chamber, bore size and condition
construction , etc all influence the end result.
The list of variables is long and distinguished.
You did what you needed to find an accurate load
Good job.
Yes, some barrels take a little longer to break in as well
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  #3  
Old 02-19-2011, 09:14 PM
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Location: Allen, TX
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Re: Load Question?

I think it's great that the extra grain did the trick. You might've had to mees with COAL especially if it was chambered with a diferent reamer.

Then, there are the guys that wonder why the drop data printed on a box of factory ammo doesn't exactly match their rifle on any given day.
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  #4  
Old 02-19-2011, 09:35 PM
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Join Date: Oct 2009
Location: Thunder Basin, WY
Posts: 1,788
Re: Load Question?

The Nature of the Beast, yea that's right.

I've even heard of same barrel brand same twist cut with same reamer, not shoot the same............The old saying "Every rifle has it's own personality"

Good job on correcting for it though.
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  #5  
Old 02-19-2011, 11:21 PM
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Re: Load Question?

SBruce,
AWESOME mulie.
I got a decent 5x5 but a monster like you got is high on my list.
Not to change the subject!
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  #6  
Old 02-19-2011, 11:59 PM
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Join Date: Oct 2009
Location: Thunder Basin, WY
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Re: Load Question?

Quote:
Originally Posted by RockZ View Post
SBruce,
AWESOME mulie.
I got a decent 5x5 but a monster like you got is high on my list.
Not to change the subject!
Thank You.

He is my "Buck of a lifetime". For the area I hunt, he is surely above average.
Scored 186 3/8" 9X6, 28" wide outside.

TrophyHunter_Colorado,

If this barrel fouls up quicker than your others, that maybe the reason it's slower too.? Might even change again after it breaks in more. But sounds like you're on top of it and making the necessary adjustments.

Good Luck and good shooting
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  #7  
Old 02-20-2011, 12:53 PM
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Join Date: Feb 2009
Posts: 474
Re: Load Question?

Thanks for the imput guys I figured like you guys said that all barrels have there own personality I just have been lucky in what barrels I have had in the past.
I use a lee collet die and crimp each round at the same tention on every load. Thus making it possible for me to shoot accurate and consistant without loading bullets in to the lans and still being able to use my mag.
Savage has the worst desine to try to extend there box magazine, I am coming up with a hybrid design to fix this.
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