Picture of the New Barnes .375" 350gr TSX

When I heard about these I thought about a co-workers 378. He is a nosler fan and may not try them but it would be cool to see how fast they will go.
 
I have never been a fan of heavy for caliber bullets, when the 270 TSX blows right through the head of a big bull hippo at 70 mtrs and then again at 120 mtrs. I'm not sure what more you could ask for. It also shares trajectory with the '06 180 gn spitzer, making 300 mtr and further shots a very real possibility. The fact that the 350 in question won't penetrate any further or impart more damage to the intended game, leaves me asking ..WHY?
If I need more killing power, I go to a bigger diameter........416....458....470.
 
I pushed my 350gr TSX to 2520fps in my 8lbs 21" non-braked barreled Rem 700 LSS 375RUM recoil was getting up there to a point that if I had to take a fast second shot I wouldn't have been able to do it as fast as I wanted so I reduced the velocity to 2440fps.

That is more than enough recoil for me but I am getting old as well and don't need to jar my bones more than I already do... :)
 
c-fbmi said:
I have never been a fan of heavy for caliber bullets, when the 270 TSX blows right through the head of a big bull hippo at 70 mtrs and then again at 120 mtrs. I'm not sure what more you could ask for. It also shares trajectory with the '06 180 gn spitzer, making 300 mtr and further shots a very real possibility. The fact that the 350 in question won't penetrate any further or impart more damage to the intended game, leaves me asking ..WHY?
If I need more killing power, I go to a bigger diameter........416....458....470.
Click to expand...

The longer core of a heavier lead core bullet results in a larger expanded diameter than a shorter, lighter bullet of similar construction when fired into a similar target at a similar impact velocity. The greater the expanded diameter, the more tissue that is damaged and displaced through the passage of the bullet, thus the more severe and complicated the wound becomes for the target. However, the density of the target partly determines the final expanded diameter of the bullet, as does the impact velocity and bullet construction. Although I've yet to see a 350 gr TSX, by contrast to a lead core bullet, all TSX nose cavities are similar in depth within caliber. For example, a 180 gr TSX does not expand any larger than a 130, but its greater weight and slower rate of expansion due to the lower impact velocity, results in narrower wound but deeper penetration. Like wise a 270 and a 300 gr TSXs in .375 caliber have similar nose cavity depths, so its likely the 350 does as well.

The greatest detriment to a long bullet's performance on game is precession (yaw). Thus long bullets tend to perform better when fired from fast twist barrels. When a bullet impacts resistance greater than air, it yaws, and the faster the spin, the more quickly the bullet overcomes that precession. An expanding bullet is helped in this regard as the expanded frontal area effectively moves the bullet's center of gravity forward, and shortens the length of the bullet, encouraging a nose forward attitude.

The solid has a problem though. As neither the length or the center of gravity change, the bullet has more difficulty recovering from precession. For this reason,the rule of thumb for solids is a flat or hemispherical nose, parallel sides, short length, and the higher the velocity the greater the penetration due to the fact that the bullet does not change shape. I would expect 350 and 380 gr solids to perform worse than either 270 or 286 gr solids due to greater precession.
 
Frankly I think the .378 Weatherby would do better with the 380 gr Rhino

As expansion begins, we see the petaled jacket begin to open . . .
DSC_0009-1.jpg


The expanded 380 gr Rhino on the right compares to a 270 gr XLC on the left, and a 300 gr X in the middle. Both X bullets measure .73" while the 380 measure .92". Penetration in wet drill mud was dead even at 32", but the Rhino produced a much more massive wound volume. Velocity was 2850 (270 gr) 2650 (300 gr) and 2300 (380 gr) all shooting was with my 20" .375 Ultra. By switching from H-4350 to H-100V, I gained another 50 fps, so my working load with the 380 is now 2350 fps. The .378 Weatherby would easily make 2450 and maybe even 2500 fps.
DSC_0008.jpg
 
After a short stint with monometal "expanding" bullets, I have returned to the tried and true Partitions and Bonded, lead alloy cored bullets.
I have a sample here of a 168 grain TTSX that failed to expand at all.
A friend has had two bad experiences with monometal bullet's failure to expand.
Other reports are filtering in with similar results, requiring second/third shots to anchor.
Since I am not beyond taking a shot well out there where velocities have diminished
somewhat, I am more confident using a bullet I KNOW will expand every time.
I question any need for a monometal bullet of that dimension.
But, if it floats your boat....have at it!!
Regards, Eagleye.
 
If you want heavy for calibre .375 bullets look at the South African made Rhino Bullets in 350 and 380gr. Kevin 'Doctari' Roberston has written glowingly of the 380gr bullets.
 
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