I have a large pile of the 154 gr wolf ammo, while I've loaded some other bullet weights, it is for the most part all that my 527 has shot. It shoots very well, very accurate and has been very effective on deer and hogs. From what I have read, the 527 was designed to handle such ammo, and mine in fact does.
I intended to experiment with some 150 gr bullets meant for British .303, see if I could duplicate/approximate the same load and performance.....but haven't gotten around to that.