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Flat base or Boat tail

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/03/2011 at 21:03
dezmick View Drop Down
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barnes has a few bullets that i want to try for hunting elk with my 7mm WSM 150 grain tsx and 160 grain tsx, the 160 is flat base, and the 150 is boat tail does it make any difference in performance between the 2, is boat tail better or does it really not matter?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/03/2011 at 21:36
Bitterroot Bulls View Drop Down
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It just really affects the bullets' ballistic coefficients.  The 150 has a .408 to the 160's .392.  So ... you can push the 150 faster, and it retains velocity better and resists wind drift better.  The  flat base may leave more room in the case for powder if you are worried about compressed loads, but the 150 is probably the better choice.

Better yet would be the tipped tripleshock in 150 grains, which has a ballistic coefficient of .450.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/03/2011 at 22:45
dezmick View Drop Down
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the tipped one is what i am going to load then, it seems like a great bullet and i will be trying that one along with the 150 grain e-tip and 154 grain interbond.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/04/2011 at 07:48
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Originally posted by Bitterroot Bulls Bitterroot Bulls wrote:

It just really affects the bullets' ballistic coefficients.  The 150 has a .408 to the 160's .392.  So ... you can push the 150 faster, and it retains velocity better and resists wind drift better.  The  flat base may leave more room in the case for powder if you are worried about compressed loads, but the 150 is probably the better choice.

Better yet would be the tipped tripleshock in 150 grains, which has a ballistic coefficient of .450.
 
Dead on BRBulls.  Couldn't have said it better.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/04/2011 at 08:24
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If it were mine I would go with a 160gr NAB. I have never had luck with any Barnes bullet being pin point accurate. I’m not knocking Barnes by any means. I have some 225gr loaded up for a 338 right now to test and play with. I would give them all a try to see what the rifle likes best as that’s what will determine what you use anyways.

 

 

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/04/2011 at 08:34
pyro6999 View Drop Down
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the problem i had with barnes bullets was that you had to mess with the seating depths so much to get them to do what noslers, hornady's and sierras would do if just threw a load together.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/04/2011 at 08:41
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Chief Sackscratch

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I think some calibers that barnes really shines and isn't a finicky as others.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/04/2011 at 08:46
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I have had really good luck getting TTSX to shoot.  They just need a bit more "jump" to the lands than traditional bullets.

The e-tip and interbond should also be good choices, but I have had trouble getting interbonds to print tiny groups.

The 160 Accubond is also an excellent bullet.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/04/2011 at 08:47
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i can tell you that in .257 and .264 diameters im not impressed. they worked very well however in 7mm, course i should add that i was using  the tsx not the ttsx.


Edited by pyro6999 - March/04/2011 at 08:48
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