VooDoo Precision

Three years, and ready for the next. How time flies!

We would like to thank all our customers worldwide, from England, the United States, New Zealand, and across Australia, for your custom.

Congratulations on your success.

May your aim be true, and the winds kind.

Shoot far, shoot tight.

Why does the extreme spread in velocity at the target matter.

If you want to step up to the next level, you cannot keep doing what you have always done and expect change.

Your extreme spread in ballistic coefficient (BC) out of the box on premium high-end projectiles will be running around 3-5%, varying on brand, which is anywhere up to 10 inches on target at 1000 yards if muzzle velocity (MV) had zero (0) extreme spread in a perfect world, generic calibre and weight travelling at 3000 fps.

Now add an extreme spread of even 10 fps in MV (a very good figure to have, and most strive for). Will give a variation of, say, an additional 3 inches vertical at 1000 yards; this is where the lucky dip starts, depending on the mix of MV and BC spread in your rounds, either cancelling or adding to vertical dispersion. Now a shot can print somewhere between zero (0) and thirteen and a half (13) inches away from its batch mate, depending on the roll of the dice; that’s plus or minus 6.5 inches added to the overall dispersion of the rifle and ammunition.

In the real world, these numbers translate to an average of 1 in 20 shots printing well outside your grouping capability.

Not only is the extreme spread in muzzle velocity critical at the rifle, as critical is the extreme spread at the target, and that is determined by conformity in the ballistic shape of each projectile, which is driven by BC spread and in turn drives the 10 inches vertical dispersion as an example.

Pointing projectiles will increase BC (in theory if you achieve the correct nose profile), measuring them for length will improve variation in stability, and measuring for weight will shave off 1% in variation at best in BC, but there is a sure way to improve conformity in BC, and it will reduce muzzle velocity spread, and that is the Model-24.

And we have not even mentioned rejected projectiles within a batch that escaped factory quality control.

Follow the numbers. The numbers show the way.

"What's One Point Worth?" just ask the winners.

Dialling in precision at its finest, with the winning edge right at your fingertips.

“What’s one point worth?”

Model-24

Spinning effectively increases precision and improves accuracy.

Low Extreme Spread (ES) in velocity at the muzzle is essentially, but it is only half the challenge; the other critical half is on the journey to the target!!

Simply sorting by length and pointing won't cut it, which only marginally reduces the extreme spread in ballistic coefficient (BC) across the batch of rounds you have meticulously prepared.

Spinning projectiles for concentricity has been well known among champions and the leading shooters in the precision bench rest and rifle fraternity for decades.

It is fast and effective in reducing your down-range muzzle velocity ES, which directly impacts vertical and lateral spread.

Spinning rounds for concentricity is easy with the right gear, it starts by placing a reference projectile that was selected and indicative of the mean shape within a lot of projectiles, with no run out or anomalies onto the cradle of the Model-24, setting the stop so that the boat tail is supported midway, and the ogive is supported along its curve, all one needs to do is dial in the shape via the precision micrometre multi-turn dials to a known reference point, 20 on the dial is a great point as the zero is a easy to remember marker on the 20.

With the reference projectile suitably marked and placed aside. Now, every projectile placed on the cradle can be compared to the reference projectile and sorted by shape into batches.

Projectiles with the same reading and run true, batched into a string, are critical to precision at 700, 900 and 1000 yards,

Any out-of-round, inconsistent shape, or anomalies are indicated by a fluctuating and/or deflected needle. Projectiles with differing shapes and any concentricity issues will have a different drag component, which will affect retained muzzle velocities and open groups as they track downrange.

It goes without saying that in bench rest, the highest quality projectiles should be used in any match at any range where group size counts. Target rifle and scope class are more generous at close range and where targets and BC effects do not play a substantial role, targets with a larger scoring area, such as 800, projectiles with minor inconsistency in concentricity can be used in practice or general range work, such as sighting in.

"What's One Point Worth?" Just ask the winners.

Model-24 comparator & concentricity test instrument.

You have done all your homework,
Rifle built and barrelled by the best riflesmith,
Best optics. repeatable and true in movement.
Projectiles, primers, and brass, meticulously selected, prepped, and batched.
Powder, weighed to the kernel after extensive testing.

Now you have sub, half MOA groups with an extreme spread in MV in single digits.

With a ballistic solver to increase your ability to hit close to the X ring and find the centre of your group with minimal rounds to increase accuracy, giving you that edge to win.

What you have missed.

Every projectile is slightly different, even in premium projectiles; every manufacturing process has its bell curve, which is why there can be as much as 3%-5% variation in extreme spread in ballistic coefficient.

Projectiles,

* Measuring for length will ensure each round has an identical stability factor.

* Pointing projectiles can increase BC and ensure base-to-tip conformity if done correctly, but you are playing with the aerodynamic profile, which much smarter engineers with unlimited resources and testing have at their fingertips, having balanced shape calibre in a dance to find the best stability in all conditions. Any lateral wind will have varying results and cause stability issues as the projectile comes down through the Mach numbers; that pressure wave moves forward as it gets closer to the transonic region, with some surprising results. Insert (where did that wayward shot come from?), all things being equal, it is also an aerofoil, and you just played with its leading edge.

* Many even weigh each projectile. Why, as once again there is a variation, and the perfectionists will remove this variance as much as humanly possible.

Each point above contributes very little to the variation in ballistic shape of each projectile in relation to any other in a batch, with respect to drag and induced drag to differing amounts of non-concentricity of each projectile on its longitudinal axis.

Your tuned load with muzzle velocity in the single-digit ES realm, printing sub, X ring groups at 100 yards, may have as much as 50fps ES at 1000 yards with a vertical spread of 8”, nearly the height of the V/6 ring, due to variation in ballistic coefficient and variation in additional induced drag due to non-concentricity, this is with the rifle in a machine rest without any external variations included.

Spinning for conformity and concentricity is the most effective way to eliminate as much as possible the variation in the ballistic performance of modern rifle projectiles, missed by every other method.

We still highly recommend refinement on the points mentioned above after spinning, i.e. measuring for length, which addresses other factors that are critical but have little direct impact on identifying variation in drag.

"What's One Point Worth?" It's all in the 1%

Model-24

You're looking at part of the analog component ready to be married to its digital counterpart and chassis for the next round-the-world journey.

In any elite sport, a 1% advantage would see equipment ruled out and banned outright, such as F1 and International Smallbore to name but couple, where even the thickness of coats and trousers is scrutinised to the millimetre; that 1% is the difference between winning and competing.

The greatest single impact on precision at any range is projectile conformity and concentricity, which affects the extreme spread of the ballistic coefficient of projectiles, notably, at longer ranges on tight targets such as 700 and 1000 yards, both sub moa targets, where precision and accuracy are critical.

By spinning, you can effectively reduce your extreme spread in ballistic coefficient by 2 to 4%, given the batch of projectiles measured, giving you higher precision, reducing fliers, and allowing you to move confidently on the fall of each round, vastly improving your accuracy.

As little as a 1% gain will give you 3-5 points in a 500-point match.

So, whoever is spinning has that edge and cannot be ruled out.

“What’s One Point Worth?” Just ask the winners.

Model-24

Quality will put you in front when it counts. There is no substitution.

Decades of evolution and hands-on engineering remain at our core. We understand what it takes to succeed—this commitment transforms craftsmen into artisans.

Our latest shipment of multi-layer printed circuit boards from our Australian manufacturer has just arrived, ready to support the next-generation Model-24, shipped worldwide. Each unit is meticulously assembled and calibrated to exacting standards. Rely on our design and craftsmanship, expertly blending analog systems with digital technology to provide the winning edge.

No batteries, no updates, no obsolescence, only the best of high-grade materials and components, to give decades of reliable measurement at your fingertips. Rugged and reliable.

Spinning has been the best-known secret amongst the top 10% of the precision fraternity for decades.

“What Is One Point Worth?” Just ask the winners.

Model-24

Can you spot the difference?

Two premium-grade projectiles, same box, same length, same weight, but not the same ballistic shape, each at either end of the BC bell curve,

Impact 10” inches vertical separation at 1000 yards. *

5% extreme spread in BC, when fired, each will print on the line of the 6-ring, one at 12 o'clock and the other at 6 o'clock; with a perfect shot based on the mean centre of your group and the batch average, then vector in any wind and hold capacity of the shooter and rifle.

Now you know why those shots appear that you cannot account for.

The Model-24 can compare the ballistic shapes of each projectile and identify anomalies.

*1000-yard targets; Same shooter, same rifle, same lot of projectiles
- First target shot in the morning, no wind, using culled projectiles
- Second and third target shot at mid-day with variable wind, sorted by spinning into sub lots.

“What's One Point Worth?”

Extreme Spread in Ballistic Coefficient (BC) is one of the largest factors in projectile dispersion; current measuring techniques within the precision rifle world capture circa 40% of the factors that contribute to BC variation within a lot, building precision rifle ammunition.

We are shipping worldwide.

Each Model-24 comes with its own Pelican Storm case, with press-release latches, no breaking fingers trying to open or close a case, and a perfect seal and protection in any environment.

Each Model-24 is built using the finest quality parts and components, with no compromise.

Hand-built to tight tolerances and exacting specifications in Australia.

Built to sort projectiles on ballistic shape and integrity, fast and effectively.

One of our units successfully travelled internationally by air as carry-on luggage.

"What's One Point Worth?"

Sitting in plain sight and ignoring the obvious!!

To find a projectile's true Ballistic Coefficient (BC), each shot must be tracked with a Doppler radar (financially restrictive to most). Another way is to use a calibrated chronograph at either end of your flight path, or one chronograph and an electronic target that registers speed, a quality unit with a low error specification for data to be useful.

This will tell you the true Ballistic Coefficient (BC) of a batch of projectiles by measuring the speed loss from the muzzle to the target.

The closer each projectile is to the next in a string in ballistic shape, the more a rig will perform to its utmost precision.

Those errant high and low shots outside groups, when all else is the same, add lateral if the wind is up. These shots are just the projectile doing what it's meant to do based on physics. They have a different BC and, accordingly, a different drag profile. These are found on either edge of the bell curve for that production run.

Projectiles with a similar BC will group at the aim point. Higher BC projectiles shoot higher and upwind. Lower BC projectiles shoot lower and downwind.

Additional induced drag from longitudinal misalignment, throw due to jacket inconsistency, and defects account for the departure from a rifle's precision, expanding groups, and introduce anomalies, making it difficult to call shots precisely and leading to incorrect adjustments to group mean centre refinement for maximum accuracy.

To achieve anywhere near the same fidelity as the Model-24, measuring each individual projectile at numerous points would be needed and, ultimately, would not yield the same result, as there are some items that the Model-24 can only measure, built into its design.

“What’s One Point Worth”