I'd also have to put him at around 145ish he could go either way up or down from that just depends how them points fill out.
Miller, bucks hit a point in the summer were they are fully done growing which usually happens around first of august the progression of antler grown happens very fast IMO, they put on alot of bone day after day in the months leadin up to july and august then they slowly start to peak out. I've always gone by the fact that you should be able to tell what is on your farm by the end of July. They won't grow anymore points and beams dont really get any longer, usually they tips just fill out.