I also recommend the 129 ABLR based on my experiences with that bullet compared to the others recommended. I don't believe in using bullets weighing more than 130gr in the Grendel. The inherent SD of 6.5 bullets allows them to penetrate better than other calibers when weights are equal. I wish someone would make a 100gr PSP similar to but cheaper than the 100gr Partitions, which I run at 2890fps in my Howa Mini.
