Why Broadheads & Field Points Don’t Hit Together
It’s August, you’re four weeks from opening day, and you just screwed fixed-blade broadheads onto the arrows you’ve been shooting all summer. First three arrows out of the bow at 40 yards: one hits the 10-ring, one kicks two inches right, one kicks five inches left, and they’re all flying with a visible wobble. Your field points, same shaft, same everything else, cut a group the size of a silver dollar.
You’re not the first archer this has happened to. It will not be the last. And the problem is not your aim.
This post is what we tell hunters who walk into the shop in August with broadhead-vs-field-point problems, and what we actually do to fix it.
The fundamental truth about broadheads
A field point is a symmetric, pointed cone. Air flows evenly around it. Small imperfections in arrow flight, a slightly torqued bow grip, a cam that’s 1/32″ out of center, a nocking point 1/64″ too high, get smoothed out by the clean aerodynamics of the point.
A broadhead is three (or four) flat blades mounted on the arrow’s tip. Each blade is a wing. Each wing is a control surface catching air. Any inconsistency in arrow flight gets amplified by the broadhead, not absorbed. A field point will paper-punch a clean round hole while a broadhead cuts a visible tear on the same shot.
The broadhead is the diagnostic tool that reveals every flaw in your bow setup. It’s not the problem. It’s the x-ray.
The three real causes, in order of how often we see them
Nine out of ten broadhead-vs-field-point problems come from one of these three. We check them in this order because this is the order of prevalence and the order of how cheap they are to fix.
Cause #1: Center shot is off
The arrow rest’s horizontal position determines where the arrow leaves the bow. If the rest is 1/32″ off center (and most factory setups are), the arrow starts on an angle relative to the string’s push. A field point won’t care enough to show you. A broadhead will.
How we diagnose: arrow-tracing tool at 20 feet, looking through the arrow down the string at full draw. We can see whether the arrow’s shaft is centered over the string’s travel path or whether it’s cocked left or right.
How we fix: micro-adjust the rest’s windage until the shaft lines up dead center. Usually takes 2–4 adjustments over a 15-minute span.
Cause #2: Cam timing is off (on dual-cam bows)
On a binary or hybrid-cam compound, both cams have to roll over at the exact same moment at full draw. If the top cam rolls over a tenth of a second before the bottom cam, the nock end of the arrow gets a small vertical push at release. With a field point, you can’t see this in a group. With a broadhead, the arrow tumbles out left-high or right-low depending on release torque.
How we diagnose: on a draw board at measured draw length, we watch both cams relative to the timing marks stamped on them. The marks should line up. If one cam is early or late, we measure by how much.
How we fix: twist or untwist the control cables in specific amounts. One full twist in a control cable moves cam rotation about 1/8″. We bring the bow back into timing, re-check, then shoot a group to confirm.
Cause #3: Arrow spine is wrong
Arrow spine is how much the arrow flexes when force is applied at the tip. A stiff arrow flexes less. A weak arrow flexes more. Every draw-weight / draw-length / point-weight combination has a specific spine range that flies clean.
When you screw on a broadhead, you’re adding blade weight and a much more complex aerodynamic profile to the front of the arrow. An arrow that was “right” for 100-grain field points may be slightly weak for 125-grain broadheads, or slightly stiff for 85-grain mechanical heads.
How we diagnose: check your bow’s actual draw weight and draw length on a draw board. Check arrow shaft brand, length, and spine rating. Run it through a spine calculator. Confirm actual point weight on a grain scale. The number has to match the spine range for your setup.
How we fix: we recommend the right arrow. If the archer already has a dozen arrows that are wrong, sometimes we can tune around a small spine mismatch with a rest adjustment. More often we say the honest thing: these arrows aren’t right for this bow and this head. Get the right ones.
The less common causes we also check
After the big three, there are four more things we look at. These come up on maybe 1 in 10 broadhead problems:
Nock travel isn’t horizontal. If the nocking point slides slightly up or down as you draw, the back of the arrow is moving vertically at release. Check: measure nock height from the berger hole at rest, then at full draw. If it changes, yoke tuning is called for.
Broadhead concentricity. Not every broadhead is machined perfectly. One blade might be 1/32″ longer than the other two. Easy check: spin-test the arrow with the broadhead on, resting the point on a flat surface. If the arrow visibly wobbles, the head is the problem. Try another head from the same pack.
Fletching contact. On low-profile rests, the vanes can clip the rest arm as they pass, especially under a broadhead’s amplified flight. Lipstick test: put a dot of lipstick on each vane, shoot one arrow, look for transfer marks on the rest. Rotate the nock 1/4 turn (if the nock is tunable) until contact disappears.
Worn peep sight alignment. If your peep has rotated over hundreds of shots and now sits slightly off-vertical at full draw, you’re shooting at an angle without knowing it. A broadhead punishes this. We check and straighten the peep with a string twist.
What this actually costs to fix
Most broadhead-vs-field-point problems clear up in a single tuning session. At our shop, we block 60–90 minutes for a full pre-season tune. That session covers:
- Check all fasteners, limb bolts, and accessory screws
- Paper tune with field points to establish a clean baseline
- Cam timing check and correction if needed
- Center shot verification with the arrow tracer
- Nock travel test at full draw
- Broadhead test group at 20 yards, then 40 yards
- Final small adjustments to merge broadhead impact with field point impact
- Arrow spine confirmation and recommendation if the archer’s arrows aren’t matching
Price as of 2026: around $80 for the full tune. That includes the chrono verification at the end so you know exactly what your bow is shooting in feet per second. Worth it for the confidence alone on opening day.
What we will not do
We will not tell you your broadheads are “fine” when they aren’t. We see this too often from other shops, the archer is told their arrows fly great, they fill one tag out of a buck they should have cleanly killed, and they come to us in September looking for answers. The fix that should have happened in August was a $80 tune.
We also will not sell you new arrows if your current ones will tune with a rest adjustment. The margin on $160 worth of arrows you don’t need isn’t worth our reputation. If the spine is genuinely wrong, we’ll show you the numbers on the calculator so you can see why.
A note on expandable broadheads
Expandable (mechanical) broadheads fly more like field points because the blades are folded during flight. Some hunters use them to “work around” tuning problems. It works, the penalty is lower penetration on a quartering-away hit, blades that don’t deploy cleanly through hide, and a weight distribution that still amplifies nock travel issues.
The fix for a poorly-tuned bow is not a mechanical broadhead. The fix is the tune. After the tune, use whatever head matches your state’s regulations and the animal you’re hunting.
Ready for a pre-season tune?
If your broadheads are flying off from your field points, don’t chase the problem with trial-and-error at home, every adjustment you make without a draw board and an arrow tracer is a guess, and guesses compound. Book a pre-season bow tune and we’ll get your arrows flying the same way every time, field tip or broadhead.
Archers come to Archery Sarasota from Tampa Bay, Orlando, Naples, and Fort Myers for exactly this work. We block the time to do it right.
Book your tune now or call (941) 322-7146, we’ll get you in before opening day.