I would say that by 2 1/2 a buck will show most of his points or at least give indecations where there may be another point.
ORIGINAL: Rick James
Below are pics of a buck from Dan's place showing his 2.5 year sheds, and 3.5 year rack. At 2.5 he was a clean 8 pointer, and at 3.5 he had a 1.5" G4 on the one side and another on the other side a bit shorter. I have no doubt in my mind that if he would have survived to 4.5 y/o he would have been a 10 pointer. I would say 4.5 based on this but I don't have the experience outside of this specific rack to know for sure.
I think you have 2 different deer here, those are 2 1/2 year old sheds which probably total 80" now the rack looks to be 4 1/2 and maybe grosses 125" for that 2 1/2 year old buck to put on 45" of bone in one year i would say is impossible. Also the sheds do have a nice curve in the beam and the rack comes straight out in front. The shed in your left hand has a brow point that has a unique curve something that genrallystays with the buck his entire life and the sheds look to show indecations of growing extra points.