Lotta mass on the bases of that bull which makes me cautious about eyeballing four inches, plus his head and body are BIG which can throw off eye, ear and nose comparisons. But the big question is how to measure.
"Originates four inches from... " depends on how it is measured and how they define "originates". Is the correct legal measurement four inches from base to closest lower side of the eyeguard or is it 4 inches to the middle of the eyeguard base or does the entire base of the eyeguard have to be within 4 inches of the base? I presume the regs are talking official B&C scoring measurement rules about measuring side points off a main beam but that still leaves it fuzzy to me as to definition of where to precisely measure the "origination". A post giving the legal definition of originates would be helpful here.
I let a bull walk once that I was and am sure was legal but it was too close to bet a hunting infraction against my ability to eyeball inches. Part of my caution was being with a partner who eyeballed one wrong and killed a marginally illegal bull years ago. Once in awhile we can't be sure till we put a tape measure on the antlers. That said, if I was sure it was legal I'd love to tag a bull like this one!