It all depends on what Barnes considers to be “expansion”. But a 160 tsx out of a 7-08 isn’t giving anything near what I consider to be enough expansion compared to say a partition or ballistic tip.
To Mt. Labrador,
Here is the data relative to our discussion about the 7mm-08 and Barnes 160 grain all copper bullets.
The maximum velocity I found for these bullets in a 7mm-08 was just under 2,700/sec.
I have been having great accuracy and velocity results in my 308 with Barnes bullets using AA2520, The Camp Perry Powder designed for the 308 case. I would try that powder loading for the 7mm-08 first.
So, the velocity I offered to the ballistician at Barnes was 2,650’/sec. for these two 160 grain bullets in the 7mm-08. Other factors I gave were 70 degrees temperature and one mile high for elevation.
The 160 grain 7mmTSX bullet does not have a super high BC. 392 still, starting at 2,650 it will reliably open fully at 300 yards going at 2,100’/sec. It has almost 1,600-foot pound of energy, still “Elk-Able”!
Their premium Long-Range X 160 grain Barnes bullet needs a 1/8 twist in the 7mm-08. It has a BC just over .600 and will open reliably out to 800 yards.
At 500 yards it is very “Elk-Able” delivering over 1,500-foot. pounds of energy from a truly superior bullet that loses no weight. In terms of fight, Barnes bullets are like having “Bruce Lee come out of your barrel”. All muscle, no fat, no pieces falling off.
Decades ago, I used the bullets you used and liked so much. They were the cutting edge once. On big wild boar however, and even medium sized ones, those bullets fell to pieces and did not penetrate when hitting the thick, large cartilaginous shoulder plate. These boar were not the little spud pigs guys are shooting in Texas with .223’s. I shot so many black tuskers in the 300-to-400-pound range.
Over 35 years ago Mountain Lion hunting was banned in California and as their population skyrocketed. My experience has been that those latent true Russian big mean Wild Boar genes began expressing themselves again under heavy mt. lion predation. True wild boar co-evolved with tigers. Hunting them by the truckloads has set my minimum bullet performance baseline. That was 20 years ago, and I have long moved far away, but the importance of having potent bullets has never left me.
Next, I lived in Wyoming and was near exclusively hunting antelope in the high mountain meadows of the Grizzly thick Wind River Range. I began using Barnes Originals then for my 7x57 and for my 270. Those 195-grain RN bullets for 7mm and 180 grain RN .277 Barnes Original bullets with a SD over .300 are TUFF. The 180.277 bullet allowed my 270 step up to a minimum round I felt comfortable being with in grizzly country before I was carrying bear spray.
That bullet was an armored beast itself. It never fell apart even on the shoulder plate of huge mature Wild Boar. Honest, I have experienced lesser bullets fall apart and glance off that natural shoulder body armor on angled shots.
No American bullet and ammunition manufacturer has done more research and development than Barnes. They have not merely improved upon the old copper cup and core model, they have taken bullet design and production into an entirely new universe.
Before going further let me offer Barnes a compliment by way of comparison.
Barnes is to bullets, what Sturm-Ruger was to firearms.
I grew up in Connecticut, our country’s signature firearms manufacturing state. Colt, Winchester, Marlin, Mossberg, Charter Arms, and then along came Sturm-Ruger.
In 1949 S-R came out with their revolutionary ,22 auto loading pistol and after 75 years of stellar service, this has led to the Mark IV .22 which sets the gold standard for accuracy.
Next, Sturm-Ruger really got investment casting nailed down and the rest was firearms history, with one innovation after another producing many firearms that became legends.
S-R really has been upright, and so the same for Barnes. They pioneered monolithic all copper bullets.
There was no road map, Barnes blazed the trail then refined it.
Barnes is committed to innovation and is constantly improving their products. Often, they have changed bullet ogives, which means findingz new COAL, otherwise pinpoint accuracy can suffer greatly.
So many hunters seem to have a case of “Barnes Ancient History” and are stuck on past issues, real or not, about how well Barnes bullets performed. Long ago I heard of Barnes over-penetration issues and bullets not opening up. I have never had any of these problems, but I do my homework and rely heavily on Barnes experts and their cheerfully given advice. They have near identical bullets designed to open at different speeds for magnum and non-magnum loadings. No other bullet manufacturer offered, offers and will continues to offer so many variations to meet the needs of hunters.
Also reloading Barnes bullets requires a new learning curve, but again the team at Barnes is so knowledgeable and so willing to help. I found that to be true personally as a hunter and also as former licensed guide. There are no mis-fires with Barnes.
Bottom line, read the great reviews from African Professional Hunters about Barnes bullets. Why would any hunter want bullets that fall to pieces, large or small. And all those, dozens even a hundred or more tiny easily digested pieces of lead go into the meat and get eaten. Yuchh
I’ll stick with what I have come to think of as “Barnes Bruce Lee bullets”; all muscle, no fat, clean and lean with no toxic pieces falling off upon impact.
Thank you for your post.
Mustangs Rule