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Rubber bullet

Rubber bullet is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Rubber bullet rather than just read about it. In short: Rubber bullets (also called rubber baton rounds) are a type of baton round. Despite the name, rubber bullets typically have either a metal core with a rubber coating, or are a homogeneous admixture with rubber being a minority component.

Rubber bullet — main illustration
Rubber bullet — illustration

Key takeaways

  • Rubber bullet belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Rubber bullet to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Rubber bullet from memory before moving on to harder problems.

Reference excerpt

Rubber bullets (also called rubber baton rounds) are a type of baton round. Despite the name, rubber bullets typically have either a metal core with a rubber coating, or are a homogeneous admixture with rubber being a minority component. Although they are considered a less lethal alternative to metal projectiles, rubber bullets can still cause fatal injuries as well as other serious injuries such as blindness or other permanent disabilities. Like other similar projectiles made from plastic, wax, and wood, rubber bullets may be used for short range practice and animal control, but are most commonly used in riot control and to disperse protests. Rubber bullets were invented by the British Ministry of Defence for riot control purposes in Northern Ireland during the Troubles, and were first used there in 1970. Rubber projectiles have largely been replaced by other materials, as rubber tends to bounce uncontrollably.

Composition and physical properties Analysis of the composition of the "rubber" pellets used by Chilean police shows that 80% of the pellets is made up of hard substances, chiefly silica and barium sulfate, while rubber makes up 20%. The measured hardness of the "rubber" pellets is 96.5 shore A. The hardness of the pellets explain why "exploded eyes" were so common in the 2019–2020 Chilean protests.

Uses

Riot control

The British Ministry of Defence developed rubber rounds—the "Round, Anti-Riot, 1.5in Baton"—in 1970 for riot control purposes in Northern Ireland during The Troubles. A low power propelling charge gave them a muzzle velocity of about 60 m/s (200 ft/s) and maximum range of about 100 m (110 yd)."The round is generally deployed in low trajectories or skip fired in the general direction (non-target specific) of the intended targets," causing pain but not injury, but is also intended to be direct fired at the discretion of the operator. From 1970 to 1975, about 55,000 rubber bullets were fired by the British Army in Northern Ireland. The bullets were intended to be fired at the legs of rioters or the ground in front of rioters where it would bounce, losing some of its velocity, and then hit the intended target. However, rubber bullets were often fired by security forces directly at people from close range, resulting in a number of individuals being killed or wounded. Humans rights campaigner and co-founder of United Campaign Against Plastic Bullets Emma Groves was blinded by a rubber bullet in 1971. In 1975, they were replaced by plastic bullets. In Northern Ireland over 35 years (1970–2005), about 125,000 rubber and plastic bullets were fired—an average of ten per day—causing 17 deaths. The baton round was made available to British police forces outside Northern Ireland from 2001. In 2013 however, Ministry of Defence papers declassified from 1977 revealed it was aware rubber bullets were more dangerous than was publicly disclosed. The documents contained legal advice for the MoD to seek a settlement over a child who had been blinded in 1972, rather than go to court which would expose problems with the bullets and make it harder to fight future related cases. The papers stated that further tests would reveal serious problems with the bullets, including that they were tested "in a shorter time than was ideal", that they "could be lethal" and that they "could and did cause serious injuries". Israeli rubber bullets are produced in two main types. The older type, the standard rubber bullet, is a steel sphere coated in a thin layer of rubber, weighing 14 grams, while the newly improved rubber bullet, introduced in 1989, is a rubber-coated metal cylinder 1.7 cm in diameter, weighing 15.4 grams. Of the lethal injuries from this projectile, most are suffered to the head. Smaller rubber bullets are used in riot shotguns and are available in a variety of types. One company, for example, makes both rubber buckshot rounds, containing fifteen 8.3mm diameter rubber balls per cartridge, and rubber baton rounds, containing a single 4.75 gram projectile.

Israeli security forces used less-lethal weapons including rubber bullets in an operation on 28 February 2011 to demolish illegal structures in the West Bank settlement of Havat Gilad.

Self-defence In some countries, less-lethal guns that fire rubber projectiles may be used by civilians for self-defence.

Kazakhstan – Private security guards are allowed to carry less-lethal gas pistols with the ability to fire rubber bullets for the purpose of self defence. Romania – Rubber bullet guns can be owned in the country by private individuals for the purpose of self-defence. Russia – Since 1999, the civil population, private security officers, and law control forces in Russia are permitted to use less-lethal weapons. A variety of handguns (Osa, Makarych, Horhe, etc.) are carried with specially weakened construction and barrel with internal lugs, making use of full-power loads and/or firing hard projectiles impossible, while rubber bullets just compress when passing the lug and so may be fired. Most common calibres are 9 mm and 10 mm with muzzle velocity sometimes almost matching normal handguns and bullets as light as 0.7 g. Ukraine – Security guards may use less-lethal gas pistols with the ability to fire ammunition with rubber bullets.

Recreation Rubber bullets, powered only by primer, are usually used for short-range indoor target practice or training, generally with handguns. They are intended only for target shooting , unlike paintballs or airsoft pellets, which are intended for use on suitably protected live targets. Rubber bullets, if used with a suitable backstop, can be recovered undamaged after firing, and reused many times.

See also Bean bag round Plastic bullet Ring airfoil projectile Sponge grenade Wax bullet Wooden bullet

References

Illustrations

Rubber bullet: "Round, Anti-Riot, 1.5in Baton" 37 mm British Army rubber bullet, as used in Northern Ireland from 1970 to 1975
"Round, Anti-Riot, 1.5in Baton" 37 mm British Army rubber bullet, as used in Northern Ireland from 1970 to 1975
Rubber bullet: 9mm P.A. cartridge with rubber bullet
9mm P.A. cartridge with rubber bullet
Rubber bullet: Rubber balls used against protesters in Ni'lin, August 2013
Rubber balls used against protesters in Ni'lin, August 2013
Rubber bullet: Two shells of Fiocchi 12 gauge rubber buckshot
Two shells of Fiocchi 12 gauge rubber buckshot
Rubber bullet: An Israeli soldier shooting rubber bullets at protestors at Kafr Qaddum, September 2023
An Israeli soldier shooting rubber bullets at protestors at Kafr Qaddum, September 2023

Worked examples

Example 1 — a first encounter with Rubber bullet

Start with the simplest possible case. Write down what Rubber bullet claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Rubber bullet before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Rubber bullet ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Rubber bullet

In research
Rubber bullet appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Rubber bullet in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Rubber bullet is common in secondary-school and first-year university syllabi. It links to neighbouring topics British inventions, Bullets, Non-lethal projectiles, so understanding it makes those chapters shorter.
In everyday life
Look for Rubber bullet outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Rubber bullet in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Rubber bullet means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Rubber bullet out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Rubber bullet in simple terms?

Rubber bullets (also called rubber baton rounds) are a type of baton round. Despite the name, rubber bullets typically have either a metal core with a rubber coating, or are a homogeneous admixture with rubber being a minority component.

Why does Rubber bullet matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Rubber bullet?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Rubber bullet.

Tags

  • British inventions
  • Bullets
  • Non-lethal projectiles
  • Paramilitary cartridges
  • Riot control weapons
  • Rubber products
  • The Troubles (Northern Ireland)

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