I contacted Barnes a while back to find out the MINIMUM velocity to make their TAC-XP bullet expand. Effective expansion will occur at impact velocities in excess of about 1800 fps. Hunters consider Triple-Shocks to be very tough bullets, and they are. At a certain depth, a bullet ceases to expand do to loss of velocity. The reason I chalk this up to failure of the Barnes X bullet to expand is that others have reported similiar experiences of the X bullet only punching a small caliber-size hole in a deer without expanding. The Barnes is a controlled expansion bullet and it does just that. When comparing them at a muzzle velocity of 3,000 fps, at 500 yards the TSX is traveling 1,940 fps and produces 1,404 ft.-lbs. One of my favorite misconceptions is the notion that some bullets expand faster than others. However, this does not mean they do … With my load of 30.0 grains of 8028 XBR, the 10 string average muzzle velocity was 2793.3. The tip and a re-engineered nose cavity provide even faster expansion. Barnes, in addition to testing with sophisticated measuring equipment, live fires a minimum of 11 rounds for every 5,000 bullets produced to test for pressure, velocity, and accuracy in their state-of-the-art underground test range. Softer metals, such as lead, tend to expand more simply because they require less velocity to deform. We do not publish that data but I can tell you. This pattern will continue until there is no expansion and where the … Minimal expansion velocity for .30 cal bullets with different weights isn't the same so I would imagine that the 7mm cal bullets would be different too. Here is the body of the email that I received back from them. For example, in Manual Number 3 , the highest velocity noted for the 130-grain .270 Win. I finally got to the range to test the low end velocity expansion of the 280 grain Barnes LRX from my dads savage 338 Lapua using trail boss powder and the bullets seated to just kiss the lands.
Spitfire TMZ bullets are new for 2006. This makes it a lead free, mono-metal bullet. I had 34" of wet newspaper backed by 5 milk jugs at 50yds, all bullets stopped at about the 30" mark. This may not have been intentional but the results are dangerous. All other Barnes bullets including the TSX (part # 30835) that the OP asked about have a minimum expansion threshold of 1900-2000 FPS which is similar to most standard cup and core hunting bullets.
It will expand less, and the farther you go out the lower impact velocity will result in even less expansion. Expansion is a function of bullet construction, sectional density, velocity and the characteristics of the target material. Hey guys and gals. One of the friendly tech reps at Barnes Bullets told me that all X-Type big game hunting bullets, regardless of caliber or weight, are designed to initiate expansion at impact velocities of 1600 fps. Plus, Barnes themselves admitted their early X bullets had some expansion problems due to manufacturing problems. The 110 grain bullets generally get about a 2400 FPS muzzle velocity. bullets were new for 2005; the 250 and 290 gr. The program is called Barnes Ballistics 2.0, and is produced and marketed by the same Barnes Bullets company that produces fine varmint and big game bullets in American Fork, Utah. Instant expansion and perfect penetration ensures cleaner, quicker kills. One must pick projectiles for Long Range Hunting carefully. If you don't believe me call Barnes and ask the minimum velocity for expansion for the TTSX 168 grain. Complete penetration, virtually 100-percent weight retention and four razor-sharp cutting petals that double bullet diameter means the new Tipped TSX creates more internal damage than any competing bullet. Minimum expansion is claimed at 1600 but from what I have seen online, it is minimal at that velocity. It is extruded from a solid piece of copper and has no core. As I compare the data in Manual Number 3 with data in the new manual, it's clear that the new banded bullets allow Barnes to publish increased velocity loads. I contacted Barnes directly. Hope this will help anyone that uses their bullets. Hunters should choose bullets based on accuracy in their rifles, the velocity their cartridges/rifles put out, the size/bulk of game targeted, and the anticipated shooting distance. 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.
Bullet expansion occurs as soon as its impact begins.
The Barnes Triple-Shock is a very misunderstood bullet.
Spitfire TMZ bullets are new for 2006. This makes it a lead free, mono-metal bullet. I had 34" of wet newspaper backed by 5 milk jugs at 50yds, all bullets stopped at about the 30" mark. This may not have been intentional but the results are dangerous. All other Barnes bullets including the TSX (part # 30835) that the OP asked about have a minimum expansion threshold of 1900-2000 FPS which is similar to most standard cup and core hunting bullets.
It will expand less, and the farther you go out the lower impact velocity will result in even less expansion. Expansion is a function of bullet construction, sectional density, velocity and the characteristics of the target material. Hey guys and gals. One of the friendly tech reps at Barnes Bullets told me that all X-Type big game hunting bullets, regardless of caliber or weight, are designed to initiate expansion at impact velocities of 1600 fps. Plus, Barnes themselves admitted their early X bullets had some expansion problems due to manufacturing problems. The 110 grain bullets generally get about a 2400 FPS muzzle velocity. bullets were new for 2005; the 250 and 290 gr. The program is called Barnes Ballistics 2.0, and is produced and marketed by the same Barnes Bullets company that produces fine varmint and big game bullets in American Fork, Utah. Instant expansion and perfect penetration ensures cleaner, quicker kills. One must pick projectiles for Long Range Hunting carefully. If you don't believe me call Barnes and ask the minimum velocity for expansion for the TTSX 168 grain. Complete penetration, virtually 100-percent weight retention and four razor-sharp cutting petals that double bullet diameter means the new Tipped TSX creates more internal damage than any competing bullet. Minimum expansion is claimed at 1600 but from what I have seen online, it is minimal at that velocity. It is extruded from a solid piece of copper and has no core. As I compare the data in Manual Number 3 with data in the new manual, it's clear that the new banded bullets allow Barnes to publish increased velocity loads. I contacted Barnes directly. Hope this will help anyone that uses their bullets. Hunters should choose bullets based on accuracy in their rifles, the velocity their cartridges/rifles put out, the size/bulk of game targeted, and the anticipated shooting distance. 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.
Bullet expansion occurs as soon as its impact begins.
The Barnes Triple-Shock is a very misunderstood bullet.