The old tag of the 264 mag being a barrel burner is a misnomer. Yes when it came out in the 50's compared to the 30-06 class rifles it was a barrel burner. But today with better steels and comparing it to other mags like the 7mm Rem mag there is really no appreciable difference in barrel life. Like any mag you should not shoot it hot and you should keep it clean and it will last a long time.
Yes there has been a resurgence of interest in the 264 Win mag the past few years. Remington started making their 700 Sendero with a proper 26" barrel in 264 Win mag a few years ago. In the USA the .264 calibers have not really done well until just the last few. The 260 Rem kind of kicked off the .264 interest and today you are seeing a lot more .264 rounds coming to life and people are seeing just what a good bullet can do at long ranges.
I got my first 264 Win mag two years ago. I traded my hunting buddy out of a custom Rem 700 action with a 27 3/4" Shilen #5 CM barrel on it. I put it into a Hogue full bed stock and put a Meopta Meo-star 3-12X56 scope on it. I found THE POWDER for the 264 Win mag as the new Hodgdon annual manual also states. RETUMBO
I found that with a WW case reformed from 7mm Rem mag or a standard WW 264 Win mag case, CCI 250 primer, 66.5 grs Retumbo pushing the 130 Nosler Accubond in my rifle will do average 3350 fps and will shoot 1/2 MOA. I have hammered DRT 5 deer with it the past two seasons from 80 to 250 yards.
MY favorite caliber is the 25-06 but my 264 win mag is running a VERY CLOSE second.