I just reasonly saw a graft that the Hornady bullets {Interlock} and the Rem {corelock} and a few others were just as good as the premium bullets { Nosler} when it comes to not coming apart At 2700 to 2900 FPS when they enter the animal. Did anyone else see this? 
jro45
I did not see the article, but traditional cup and core bullets have proven themselves quite adequate to the task at .30-06 velocities. The trick is to match the bullets, their impact velocity and the intended target.
The problem really arises when you go with faster muzzle and higher impact velocities. A bullet that works very well in a .30-06 may act more like a varmint bullet at .300 Win Mag velocites. The result may be a spectacularly fast kill or a shallow but grievous wound and a lingering death. Typically the problems with cup and core bullets at high velocity are not at 500 yards but at 50.
My first elk was taken with a 162g Hornady Interlock BTSP that left the muzzle around 3000fps and impacted 100 yards later. The bullet went dead center through a rib, through the lungs, apparently went between the ribs on the off-side and came to rest under the hide. It retained less than 50% of its original weight. For the next 20 years I used 160g Speer Grand Slams. The only one I ever recovered took out both shoulder joints of a bull elk yet retained about 70% of its weight. That was much better performance in my mind.
Expensive bullets, unfortunately, do not guarantee good performance. My first experience with Barnes XLCs is a case in point. I had read reports of X bullets failing to open so I tested my would-be elk load on antelope. A buck antelope suffered two through the lungs at a hair under 300 yards. These shots were probably lethal but I got tired of waiting, circled around and put a third XLC though its heart from 100 yards or so some 20-30 minutes after taking the first two shots. Just before I squeezed that last shot off the buck got up and tried to walk away. I went back to Grand Slams for elk that year. Later I read in an article I Shooting Times where Rick Jamison had performed gelatin tests at 2000fps and 3000fps with various bullets. Both the XLCs and Failsafes worked perfectly at 2000fps but at 3000fps they opened up and shed their petals. Dont know if the XLCs I put into the antelope penciled through like FMJs or shed their petals, but either way the result was extremely disappointing.
The result was I looked to different technology when searching for a bullet for the .45-70. What I came up with was bonded bullets, in this case the North Fork which has a solid shank and bonded lead core up front like the Speer Trophy bonded, with grooves somewhat like the Barnes TSXs. The results were excellent and I have since started using them in my 7mm Mag and .300 win Mag.
Based on my rather limited experience, I have come to prefer bullets that positively limit expansion, either through a solid shank (Barnes X, Speer Trophy Bonded, North Fork) or though a partition (Nosler Partition and Swift A-Frame). While my experience with Barnes XLCs was unfavorable, they claim to have solved the problem and I have not heard of any bad reports regarding the TSXs which I now load for the .257 Roberts and .300 Win Mag. Due to the previous problems I do not hunt with these loads yet, but they are superbly accurate. Right now it is Norht Fork bullets for the 7mm Mag, .300 Win Mag and .45-70, and Speer Grand Slams for the .257 Roberts. The Roberts will get A-Frames for hunting purposes if I ever get the load development done (no North Forks available in .257).
IMHO, the importance of good bullets becomes less important as bullet weight increases. But I will still stick with the best I can get because not every shot, no matter how well planned and carefully taken, hits where intended.