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Ttsx

 
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  #1  
Old 05-24-2008, 07:04 PM
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Ttsx

Finally got the .308 168s I ordered for the VTR project,Im going to use these this season for deer and antelope.Im very familiar with the Barnes TSX but this will be my first time with the tipped versions.Can anyone tell me if the BC is going to be similar to the Hornaday AMAX(0.475)?With the accuraccy that the tip provides on othe AMAX this should be the ideal hunting bullet IMO.

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Old 05-24-2008, 09:04 PM
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I also just picked up some .308 168 gr TTSX's for my Sako 300 WSM. The Barnes machine for making them had been down for a while and they're catching up on back orders. I called the Barne tech rep a while back and he gave me an estimated BC of about .450

Having said that, just the other day, I found out that the Nosler E-Tip have just come out which is a similarly constructed bullet. They are made of the same copper alloy that Nosler uses to jacket their other bullets and gives less fouling than the all copper Barnes bullets. The only weights available now in the .308 are the 150 and 180 gr. The 180 gr has a BC of .523

Another difference is the E-Tip will expand down to 1800 fps and the TTSX down to 2000 fps. So right now I am leaning toward the E-Tip.

Here is a test done with the E-Ttip, PT and TTSX. The TTSX penetrates better, but the E-Tip expands a little more. A trade off.

24hourcampfire: Bullet Test Part II (Barnes & Nosler)
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Last edited by MontanaRifleman; 05-24-2008 at 09:08 PM.
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  #3  
Old 05-24-2008, 09:14 PM
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Contrary to popular belief the 168 TTSX is not as good for Long rang as is the 180TSX.
The BC is not enough higher and the minimum velocity for expansion is 200 FPS higher than fore the TSX
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Old 05-24-2008, 09:58 PM
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I have outstanding results with the untipped TSX expanding at all ranges in the 7 and 8 mag out over 600,does the TTSX need more fps to exapnd?I thought the tip helpe the bullet to expand faster and at lower speeds...Guess Ill find out when antelope opens,going for 500+ yard shots,nothing better than field tests to find out what a bullet will really do.
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Old 05-24-2008, 10:22 PM
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The 168 grain TTSX was stiffened up so as to not loose its pedals when impacting at close range from the big 300 Mags ( Rum & 30/378) as a result the minimum impact velocity for expansion is 2000 FPS per Barnes. The regular TSX is 1800 FPS and I have taken game with the 180 TSX out to 777 yards
If you don't believe me call Barnes and ask the minimum velocity for expansion for the TTSX 168 grain. The TTSX minimum velocity for expansion is not the same in every caliber, case in point the 225 TTSX 338 cal bullet has a lower minimum impact velocity than the standard TSX.
One must pick projectiles for Long Range Hunting carefully. I have used the 180 TSX in my 300 Win for a number of years and would never switch from it to the 168 grain TTSX since it would reduce my range

The standard TSX needs no help in opening as this high speed photo shows. The TSX is completely opened in 2" of ballistic gelatin

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Old 05-24-2008, 11:30 PM
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What FPS in the photo?Is there a link to a video clip of this shot?Completly expanded in 2" of gel,that is impressive.Im well over 1800 at 500 so within the range I plan on shooting expansion shouldnt be an issue.Does anyone know if they have or will release the tipped tsx in 8mm 180 or 200 gr?
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Last edited by NONYA; 05-24-2008 at 11:38 PM.
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  #7  
Old 05-24-2008, 11:42 PM
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Found some....
Barnes Bullets High Speed Video Clips
look at the spiral in that "wound" channel,wow!
Reloading data,BC listed for most
Barnes Bullets Load Data
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