I agree with MOA, while calibers have increased dramatically in the last twenty years, and powder selections have filled in obvious gaps in the burning rate spectrum, bullets had not matched the pace.
The real reason the .270 has not created excitement recently is the fact it was designed in the 1930's. Since shooting is basically an application of applied physics and since manufacturers want to sell weapons, creating new calibers to allow us to play with makes the manufacturers ultimately happy. The .270 has been fine from inception, but it hasn't been "new"in 80 years!
New bullets have , at long last, provided the shooter with really finite accuracy and they both expand without blowing up at short range and also expand reliably at really long range, which is the paradigm this forum is based on. Bullets, really, are what sunk the .264 Magnum versus the 7mm mag. They blew up at short range at such very high velocity and those that did not sometime failed to expand at really long range.
Not all "new" bullets are great for hunting. I was told of the extreme accuracy of the Hornady SST's. In my new 6.5 x 284, assembled to benchrest standards, these bullets were the most accurate I ever shot in a hunting rifle. The first prone 100 yard group produced a nice round hole slightly larger than the diameter of the bullet and I was "hooked". I got unhooked when taking a 16"+ Antelope in New Mexico at 300 yards when the core separated from the jacket. I sent the remainder to Hornady and somehow that piece got lost at the Factory. I now use Nosler Accubonds and I am very pleased with the accuracy and expansion allowing easy trailing on White tail deer in forest settings.
So, yes there was a lack of bullet selection for .270's for many years, still a lot of game was taken with these rifles. Nowadays anything you want to do with a .270, you can for all practical purposes with the excellent bullets available. Remember the animals are mammals and have not developed armor plate in 10,000 years. Their lungs and heart will give out when pierced by a modern bullet and they will die!
