The Swhacker's unique blade design provides you with two separate cutting edges.
The first set of edges also known as the wing blades are used for cutting the hide and the first set of ribs. These blades are also used to open the broadhead and are much smaller than the main blades. They take the most punishment by cutting through the hair dirt hide and bones during entry. The smaller blades take less energy to penetrate through the first side than an "open on impact" broadhead. These wing blades also provide a load bearing surface for the ferrule during impact.
The second set of edges or the main blades do not touch anything during the initial penetration. They still have "virgin" edges when they open in the body cavity. This allows the main blades to remain razor sharp for the internal organs.
100 Grain Expandable 2-Blade Broadhead
1" in flight with 2" cutting area after penetration
I shot a buck last fall with this broadhead. It passed through the first shoulder and stopped half way through the opposite shoulder. The deer ran less than a 100 yards. The only things that happened was the arrow was broken and a slightly bent blade.
Shwacker broadheads are not what they are cracked up to be. I shot my first buck with a bow this year using a shwacker broadhead. The deer was quartering away at 35 yards. The arrow had great penetration and hit the opposing shoulder blade & the broadhead bent with the blades still inside the broadhead showing no signs of deployment.