When you shoot a hog with one does the arrow pass through?
Smaller hogs, sometimes, but generally the arrow sticks out the off side 8"-12".
Complete 'penetration' is common....but a 'pass-through' is not.
Lots of variables with hogs. I will expand on that below.
I was quite surprised to see that with deer and elk but with a razor blade on the tip I guess I should not be surprised.
I have not shot an Elk with 'stone' tips, but have taken Whitetail Deer with them...and pass-throughs are pretty much the norm (provided I stay off the shoulder bone). But, I shoot heavy arrows (some weighing over 700 grains) and my bows pull 72 lbs. (at my draw length, 31").
Modern equipment provides certain advantages for the Archer, but a 'razor' tip is probably least among them. Modern Aluminum or Carbon arrowshafts are straighter than wood ones and recover quicker from arrow oscillation.
Modern broadheads are roughly the same diameter at the base as the arrow, so there is no 'step' to impede penetration. Compound bows (of the same draw weight) are more efficient than traditional gear, so they cast the same weight arrow faster.
As concerns broadheads, PROPERLY knapped stone points...will surprise you in their ability to penetrate and inflict a lethal wound. They don't compare to modern 'mechanical' broadheads...because those achieve their 'potential' by virtue of small overall surface area (less drag when contacting flesh). But, a well made stone point acts like a high speed 'wedge' (that also has fairly sharp edges).
If you look at a 'properly' made stone point, it will have a lenticular cross section and taper from the rear to the point.
When mounted to a wooden shaft (arrow/other)... the shaft MUST be tapered to reduce the amount of 'step' that is created in the process.
How deep do the kind you have made go?
So many variables here. With respect to hogs, they range in weight from 40 lbs. to over 400 lbs.
Sows are normally less broad through the shoulder than Boars, hair length varies from nearly smooth coated to 3" long and VERY thick. If a hog is caked with dry mud, that presents another obstacle for the arrow.
For hogs......I tend to favor a point that is roughly a 3 to 1 ratio... (length 3 times the width). You'll want shoot the heaviest arrow your bow will cast accurately (traditional gear). The points themselves (being stone) typically weigh less than modern steel broadheads, but can be made to weigh 90-125 grs. and not be impossibly large.
If taking a broadside shot, you need to stay extremely tight behind the shoulder. The preferred shot however, is slightly quartering away.