Nosler Brass but got similar results with WW. No Slick 50! Ha. I am not seeing any pressure signs but I feel that it's a little hot to recommend across the board. I backed off to 53.5 for about 3100 but accuracy wasn't as good. Opened up to about an inch. I've got my CDS turret for it and I used a 100 yd zero and I get to about 700 on the dial but I'll have to check. Only shot one deer with it at 325 but it worked well. About 225 lb MS delta buck. CDS is right on out to 600 but I've not shot farther than that.