Got him on camera one time only. PVC is almost 6' long and "T" post is at least 5' above ground.
Let's see, the PVC pipe is some amount shorter than 6', is at an angle to the hog, can't be fully seen, and is quite a distance from the hog. The hog is located uphill from the 5+ foot T-post, some distance behind and away from it.
In short, your two objects you are referencing for scale are not very useful for this picture. Your nearly 6' PVC pipe appears shorter than your 5+ foot T-post.
You got a mature looking boar there. Shoot it and tell us how big it is.