Blood Therapy Ocd Broadheads

Understanding Blood Therapy OCD Broadheads for Archery

Blood Therapy is a broadhead design by G5 Outdoors, and the OCD (Opposing Cutting Diameter) refers to the specific blade configuration that maximizes cutting width. These heads are popular among bowhunters because of their reliability and penetration. The design uses interchangeable blades that lock into a forged steel collar. I shoot them mostly for whitetail and mule deer, and they've been consistent enough that I keep them in my quiver year after year. The core thing to understand about the OCD configuration is how the two blades sit opposite each other when deployed. You get a full 1 and 1/8 inch cutting diameter with this setup. The key advantage is that the opposing blades create a clean channel through tissue while the solid center collar helps maintain structural integrity on harder hits. That solid collar is what separates these from some of the cheaper expandable designs that tend to wobble or collapse under bone contact. I had a situation last season where I was shooting at a dense thicket of sandstone in Arizona on a mule deer. The arrow took a deflected angle and hit a rib at maybe twelve yards. Most fixed blade heads would have split or at minimum I'd be wondering where my point of impact went. The Blood Therapy held together. The blade did shift slightly in its seat, but the head remained intact and the deer dropped right there. I learned something from that: the collar retention system on these is genuinely good, but it's not invincible. If you're shooting heavy arrows at thick bone angles, you'll want to inspect the blade locks afterward. A little threadlocker on the blade screws goes a long way if you notice any crosstalk during deployment.

How They Work in Practice

When you release the arrow, the force of flight slams the blades outward against the collar mechanism. This is a mechanical action, not a spring-loaded one like some expandables. The blades stay open because of the collar geometry, not because of tension. That's why they're called mechanical broadheads and why they tend to perform more consistently than spring-based designs. The blades open fully within the first few feet of flight if your draw weight is sufficient. Here's something most people miss: these broadheads require a minimum draw weight to deploy reliably. G5 rates them for bows starting around 50 pounds, but I wouldn't push them much below 60 if you want consistent blade lockout. Under 60 pounds, the blades sometimes don't fully seat in the collar, and you can get reduced cutting diameter or, worse, blades that partially retract on impact. I ran into this with my daughter's 45-pound recurve last year. We switched her to a different head entirely. Don't experiment on borrowed gear. The actual tuning process is straightforward. You sight in your broadhead at twenty-five yards just like any field point. Paper tuning after switching from field point to broadhead will tell you if your arrow is tracking clean. If the paper shows a tear, you need to adjust your rest or check your cam timing. This usually takes me about ten minutes on a well-tuned bow. On a bow that's been sitting all winter? Give yourself twenty.

Practical Limitations and When to Look Elsewhere

Let's be straightforward about the downsides. These broadheads are relatively expensive compared to basic fixed blades, and the blade assembly means there are more parts that can fail. I've seen blades crack on the tang where they pivot. It's rare, maybe one in two hundred shots, but it happens. Also, the OCD cutting diameter looks impressive on paper, but in practice you rarely achieve full spread on every shot. If the arrow isn't flying perfectly straight, one blade may deploy before the other, leaving you with a 7/8 inch cut instead of the rated 1 and 1/8. For very large game like elk or moose, I actually prefer my heavier fixed-blade options. The Blood Therapy works fine on a tight shot, but if you're going through heavy muscle and bone, the expanded profile can create more drag than necessary. The pencil-point tip helps, but a massive shoulder hit on an elk at forty yards can still result in the head stopping rather than passing through. In those situations, I'd go with something like a QAD PitBoss or a heavy fixed blade like a Trophy Taker. Those designs prioritize penetration over cutting width, and that matters when the margin for error is slim. Bullet nodes on the target side are another issue. If you're shooting at steep angles into a tree trunk, the broader cutting diameter increases the chance of a node causing a deflection. I've lost two arrows this way across three seasons. It's not the broadhead's fault, really, but it's worth knowing. Use a sharper edge and a lighter arrow setup if you're dealing with lots of oblique angles through timber.

Maintenance and Replacement

Keep spare blades. G5 sells replacement blade kits for around fifteen dollars. The old blades dull quickly if you're hitting a lot of bones, and a dull blade won't deploy cleanly. I replace mine after every hunt season, and I carry a spare set in my kit. The blade screws can strip if you overtighten them, so use moderate torque. A small amount of blue Loctite keeps them from backing out during repeated deployments. Check the collar mechanism periodically. Dirt, burrs, and dried blood can accumulate inside the collar and prevent full blade deployment. A quick wipe with a solvent-soaked patch and a light coating of silicone spray keeps things running smoothly. This takes about three minutes and prevents the majority of deployment failures I've seen in the field. Overall, the Blood Therapy OCD broadheads are a solid choice for bowhunters who want a reliable mechanical with good cutting diameter and proven penetration. They're not the cheapest option and they require proper tuning, but for the price point they perform well above average. Just don't expect perfection on marginal shots or against heavy bone.