Well, it's certainly "minute of deer" out to fifty yards. Have you shot this load at 100 yards as well? Is 23.5 grains the only or first charge you have tried?
I have not shot this particular brand of bullet, so I can't say how good the quality is. You need to shot a deer or three before you can start forming a real opinion on how they perform. I will say, I've tried the XTP, Remington SJHP, and Sierra HP and all have worked well.