Sorry,
I've been really busy at work and trying to hunt this weekend.
I'll take one last stab trying to 'splain what I meant...
This hog had a shield.
It was uniform in thickness, every bit as hard as any boars. It was a hermaphrodite- having male and female sex organs, and had never dropped a litter. It was killed by Terry Green. My sources tell me that in every thousand hogs there are a given number of these 'barren' females and we've killed quite a few of them over the years on our place.
They get characteristics of boars in that their heads get pretty extended, they get a little smaller in the back, and they of course all have had shields but just like this one- they're uniform and only exhibited once you start skinning them down.
When you do that you have to make circle cuts around the outside of the hog to get that shield to 'roll' down so you can get the front shoulders off.
They NEVER have any fighting scars on them- I'm guessing since they don't come in season the boars don't make passes at them?
There was no 'exterior' to the shield.
See, it's my contention that there are two components to a hog's shield- the interior AND the exterior.
Trying to separate the two or say the exterior component isn't important belies how important that part of it is to the protection of the hog.
Look at this pig
and this one Terry showed earlier
I killed the first one with my truck in front of the Savannah River Bow Zone two weeks or so ago..it committed suicide with a Dodge Ram 1500 front bumper.What a waste.
Both the shields on these hogs looked the same- its just that the one I hit with my truck had a LOT more hair on it.
They had almost a bodybuilder appearance to the shield, created because from teenagerhood the boar has continually worked trees over- not the big, stiff, non-moving trees that pigs rub their mud against, but 10-12 foot tall pines in our area- that offer resistance against the rubbing of the boars.
They mark the tree with tushes to get the sap running, then lay in clay, get up against the tree, mix the sap with the clay and rub it into their sides, but at the same time they are developing a 'callous' on their exterior and the outermost surface of the shield that gives it even greater depth and texture.
You do have to shoot through both.
We performed an experiment on the one I hit with my truck-I placed a 675 grain carbon with a 160 grizzly filled with a steel adapter and using two fingers to steady the broadhead I pushed it right through to the ground on the opposite side of the hog.
I have no doubt that a 46-48 lb bow at your draw, with acceptable arrow weight and a very sharp broadhead will generate enough energy to get through a shield- if you don't hit bones.
Just remember, all that clay and sap are working against you big time- they soak up a ton of blood before it starts hitting the ground