I too made the switch about the same time, NBTs when I use them have never given me a chance to look elsewhere. When the 260 factory one blew up on my mom's deer, that was only 3 weeks ago, so although many here think they are skookem, I'm still sceptical.
Was that the .375 caliber bullet? Nosler discontinued these fairly quickly and converted them to the Accubond for better performance.