The three mechanicals, on the specs their makers do publish
Broadheads are unusual in this registry: the category actually publishes its numbers. All three heads state a grain weight, a blade count, a cut diameter and a deployment type, which makes this one of the few comparison tables on the site with no empty cells.
| Head | Deployment | Blades | Cut diameter | Weight |
|---|
| Rage Hypo2 | Rear-deploy | 2 | 2 in | 100 gr |
| Swhacker #261 (Levi Morgan) | Wing-blade | 2 main + wing blades | 2 in | 100 gr |
| NAP Spitfire | Front-deploy | 3 | 1-1/2 in | 100 gr |
Three things fall out of that table. All three are 100 grain, which means none of them changes your arrow’s total weight or its front-of-centre balance relative to the others — swapping between them is a tuning question, not an arrow-build question. Two publish a two-inch cut and one publishes an inch and a half. And the deployment mechanism is different on every row, which is the spec that actually separates them.
Rear-deploy, front-deploy, wing-blade: what the mechanism changes
Rear-deploying heads, like the Hypo2, carry their blades folded back along the ferrule and swing them forward on impact. The advantage is that nothing sticks out in front to catch air or hide, and the blades open into the animal rather than against the hide. The cost is that the blades have to travel further to open, and on a glancing hit they can open late.
Front-deploying heads, like the Spitfire, fold their blades forward and open them rearward. They tend to be the most forgiving in flight and the most field-point-like, which is why the Spitfire is the one we would hand a hunter who has not re-tuned since last season.
Wing-blade designs, like the Swhacker, use small forward wing blades whose job is to cut the hide open and trigger the main blades. That is the whole point of the design: it does not rely on blunt impact energy to force the main blades through skin, which is why it is the one marketed at slower, lighter setups. Of the three, it is the head we would put on a youth bow or a crossbow being shot at the low end of its range.
The energy question, which is the only one that should stop you buying a 2-inch head
Kinetic energy for an arrow is a function of its total weight and its speed, and the formula is published — Wasp Archery writes it out plainly. What it means in practice is that two hunters shooting the same broadhead can get completely different results, because one is pushing a 480-grain arrow at 280 feet per second and the other is pushing a 350-grain arrow at 240.
A mechanical takes a cut of that energy before it penetrates anything. So the order of operations is: know your arrow’s weight and your bow’s actual speed first, then pick a cut diameter. Pope & Young’s equipment definitions set a 300-grain minimum total arrow weight, which is a useful floor rather than a target — our arrow guide and draw weight for deer cover the arithmetic, and fixed versus mechanical is the page to read if you have not decided which family you are buying from.
Two practical rules come out of this that we are comfortable stating. If your setup is at the lighter end — low draw weight, short draw length, a light arrow — take the inch-and-a-half head or the wing-blade design rather than the biggest cut on the shelf. And if you shoot a crossbow, check what your manufacturer specifies before you buy any mechanical at all; crossbow speeds change what a mechanical does on impact, and our crossbow range page covers how fast that energy falls away downrange.
What a bigger hole actually buys, and where the claim is oversold
The honest case for a two-inch mechanical is not that it kills deer deader. It is that it gives you a wider wound channel and therefore more blood on the ground, and blood on the ground is what decides whether you recover a deer in the dark.
That is a real argument, and the National Deer Association’s own blood-trailing guidance is the reason: their advice is built around waiting by shot type — about an hour on an arrow lung shot, a minimum of two on liver, four to six on a paunch hit — reading blood colour, and marking every drop. Every one of those steps gets easier with more sign. A head that leaves a trail you can follow walking instead of crawling is worth something you can measure in recovered deer.
Where the claim is oversold is on pass-throughs. A pass-through on a broadside whitetail is a function of energy and arrow build far more than of cut diameter, and the hunter who swaps to a two-inch head to fix poor penetration has usually diagnosed the wrong problem. If arrows are stopping in deer, the things to look at are total arrow weight, front-of-centre and shot angle — not the head.
What to buy with them
Two things. First, practice heads or a target that will take a broadhead: a mechanical is not reusable after a hit, and shooting your hunting heads into foam to check flight is how you ruin three of six. Our target picks flag which ones are rated for broadheads.
Second, a rest that releases the arrow cleanly, because a mechanical hides tuning problems right up until it does not. If your arrow is contacting the rest on the way out, a folded mechanical will fly beautifully at twenty yards and unpredictably at forty. Our drop-away rest picks cover the fix, and sighting in a bow covers the order to do it in.
