
Cast iron is a brittle material that can be used as a target for firearms. It has been tested that cast iron skillets can stop low-caliber bullets but will not withstand larger calibers. The quality of the metal, the bullet's speed, and the distance from which it was fired all play a role in whether a bullet can penetrate cast iron. While some claim that a \.22lr bullet would not shatter cast iron, others have found that a \.223 bullet can cut through it. A 9mm bullet is also believed to be able to penetrate cast iron.
| Characteristics | Values |
|---|---|
| Caliber size | Low-caliber bullets can be stopped by cast iron, but larger calibers will penetrate |
| Bullet material | Soft lead bullets will not penetrate cast iron, while hardened penetrator cores will |
| Specific calibers | ~.22 short and ~.22lr likely won't penetrate; 9mm, .308, and ~.223 will |
| Distance | Closer range increases the likelihood of penetration |
| Quality of metal | Higher quality cast iron is more resistant to penetration |
| Speed of bullet | Higher velocity increases the likelihood of penetration |
| Thickness of cast iron | Thicker cast iron is more resistant to penetration |
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What You'll Learn

Low-calibre bullets can be stopped by cast iron skillets
It is claimed that cast iron skillets can stop low-calibre bullets. The Mythbusters team tested this theory and found that cast iron skillets can indeed stop low-calibre bullets but will not stop larger calibres. The skillet may even cause some damage to the bullet, depending on the skillet's thickness and the type of firearm used. However, it is important to note that cast iron is incredibly brittle, and while it may initially stop a bullet, it will eventually fracture with anything much bigger. The quality of the metal, the speed of the bullet, and the distance from which the bullet was fired also play a role in the outcome.
Cast iron skillets are not meant to serve as protection against bullets and should never be relied upon for such a purpose. While they may provide some level of defence, there is a high risk of injury or even death if they are used for this purpose. Cast iron is very hard and brittle, and while it may bounce off a bullet, it can also shatter like glass if hit with enough force. This shattering can cause small pieces of the skillet to be thrown at high velocity, which can be dangerous.
The effectiveness of a cast iron skillet in stopping a bullet also depends on the type of bullet. Non-lethal bullets such as buckshot or rubber pellets may not penetrate thick but lightweight surfaces. Solid objects will bounce these rounds off, although they may partially penetrate depending on the object's weight and composition. Lead bullets, for example, will not penetrate even mild steel very far. On the other hand, a bullet with a hardened penetrator core may punch through hardened armour plate.
The size of the skillet also matters. A larger skillet will generally have more mass and thickness, which can affect its ability to stop a bullet. A 9-inch skillet typically weighs around 4-5 pounds, while a 12-inch cast-iron skillet can weigh up to 7-9 pounds. The weight and thickness of the skillet can influence its effectiveness in stopping a bullet.
In conclusion, while a cast iron skillet may be able to stop a low-calibre bullet, it is not a guarantee, and there are many factors at play. The quality of the metal, the type of bullet, the speed of the bullet, the distance, and the size and thickness of the skillet all come into play. Cast iron skillets are not meant for protection against bullets and should never be relied upon for such purposes due to the high risk of injury or death.
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Larger-calibre bullets will penetrate cast iron
While cast iron skillets can stop low-calibre bullets, they will not stop larger-calibre bullets. The quality of the metal, the speed of the bullet, and the distance from which the bullet was fired all play a role in its ability to penetrate cast iron.
Cast iron is a brittle material that will eventually fracture when struck by a bullet of sufficient calibre. A 9mm bullet, for instance, is capable of piercing cast iron, as evidenced by the fact that it can penetrate common building materials to a greater extent than a 5.56 bullet. However, the effectiveness of a 9mm bullet pales in comparison to a *.308*, which would easily penetrate cast iron.
The effectiveness of a bullet in penetrating cast iron also depends on its construction. Bullets with hardened penetrator cores, for instance, are more likely to penetrate cast iron than soft lead bullets, which have difficulty even penetrating mild steel. Jacketed bullets, which are encased in a shell of harder metal, typically a steel alloy, are another example of bullets with enhanced penetrating power.
The weight of a cast-iron skillet can also influence its capacity to stop bullets. A 9-inch skillet, weighing around 4-5 pounds, may offer some protection against low-calibre bullets. Larger skillets, such as a 12-inch cast-iron skillet weighing around 7-9 pounds, could provide slightly better protection. However, it is important to note that cast-iron skillets are not designed for protection against bullets and should never be relied upon for such purposes.
In conclusion, while cast iron skillets can deflect and even damage low-calibre bullets, they are ineffective against larger-calibre bullets. The calibre, construction, and speed of the bullet, as well as the quality and weight of the cast iron, all contribute to the outcome. Cast iron skillets should never be used as a substitute for proper ballistic protection.
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The quality of the metal affects penetration
The effectiveness of bullet penetration depends on the type of bullet used. For instance, round-nose lead or full-metal-jacketed bullets are effective in penetrating big bores, but they may not be ideal for home defense due to overpenetration concerns. On the other hand, wide-mouth hollow-point bullets, such as the 115-grain JHP used in Buffalo Bore's +P 9mm load, break up quickly when fired against cinder blocks and penetrate less in wood compared to other loads. Bonded-core bullets are designed to stay together and penetrate sheet metal and window glass.
The quality of the metal in the bullet also matters. A soft lead bullet, for example, will not penetrate even mild steel very far, while the same size bullet with a hardened penetrator core may be able to punch through hardened armor plate. The design of the bullet also affects its performance; non-lethal bullets like buckshot or rubber pellets may not penetrate thick but lightweight surfaces like plastic or glass, and they may only cause bruises and welts against reasonably opaque objects thicker than an inch or two. Solid objects may bounce these rounds off, but they can still partially penetrate depending on the weight and material of the surface.
The quality of the metal in the skillet or pan also comes into play. Cast iron skillets vary in size and weight, with larger skillets offering more protection against bullets. A 9-inch skillet weighs around 4-5 pounds, while a 12-inch cast-iron skillet can weigh up to 7-9 pounds. The thickness of the skillet also matters, as thicker skillets can cause more damage to the bullet and potentially deflect it. However, it is important to note that cast-iron skillets are not meant for protection against bullets and should not be relied upon for self-defense.
Overall, the quality of the metal in both the bullet and the skillet or pan affects penetration. While a cast-iron skillet can provide some protection against low-caliber bullets, it is not a reliable defense against larger calibers or close-range shots. The type of bullet, its speed, and the distance of the shot also play a role in the effectiveness of penetration.
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Distance matters: cast iron shatters at close range
When it comes to the penetration of cast iron pans, several factors come into play, including the quality of the metal, the speed of the bullet, and the distance from which it is fired. While cast iron can stop low-caliber bullets, it is not effective against larger calibers.
The brittleness of cast iron is a critical factor in its ability to stop bullets. Cast iron is incredibly brittle and will eventually fracture under the impact of larger-caliber bullets. The distance at which the bullet is fired plays a significant role in the outcome. At close range, the impact force is concentrated on a smaller area, increasing the likelihood of the cast iron shattering.
The Mythbusters team tested the effectiveness of cast iron skillets against bullets. They concluded that while cast iron could deflect a bullet and cause some damage, it was not a reliable means of protection. The size of the skillet also matters—larger skillets provide more surface area and thickness to withstand penetration.
It is important to note that the purpose of cast iron cookware is solely for cooking. It should not be relied upon for self-defense or protection against bullets. Attempting to use a cast-iron pan for such purposes could result in severe injury or even death.
In conclusion, distance matters when considering the penetration of cast iron. While cast iron may offer some protection against low-caliber bullets, it is not designed for this purpose, and the close range of gunfire can cause the brittle material to shatter.
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Bullet material makes a difference
The ability of a bullet to penetrate a cast-iron pan depends on several factors, including the bullet's calibre, material, velocity, and the quality and thickness of the cast iron. While cast iron skillets can stop low-calibre bullets, larger calibres and certain bullet materials are more likely to penetrate.
Bullet material plays a significant role in penetration capability. Traditional bullets were made of pure lead, which is soft and malleable, making it suitable for low-velocity handgun cartridges. However, lead bullets may struggle to penetrate cast iron, especially if the skillet is thick and of good quality.
To enhance penetration, bullet manufacturers began using lead alloys, adding tin and antimony to increase hardness. These harder alloys improve the bullet's ability to penetrate targets like cast iron. Additionally, copper is often used as a bullet jacket to protect the lead core and provide structural support. Copper jackets can be varied in thickness to make bullets more impact-resistant.
Brass, an alloy of copper and zinc, is another bullet material that can increase penetration. Brass bullets can contain up to 33% zinc, making them much harder than gilding metal, which contains only 5% zinc. This higher zinc content makes brass bullets ideal for penetrating hard targets.
The use of plastics in bullet manufacture has also led to improved penetration capabilities. Plastic tips and elastomer plugs in hollow-point bullets help them deform more consistently, enhancing their ability to penetrate various targets, including cast iron.
In summary, while cast iron skillets can deflect or stop low-calibre bullets, larger calibres and bullets made with harder materials like alloys, copper jackets, brass, and plastics are more likely to penetrate. The effectiveness of bullet penetration depends on a combination of factors, including calibre, material, velocity, and the characteristics of the cast iron pan.
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Frequently asked questions
No, a cast iron pan will stop low-caliber bullets but will not withstand larger calibers.
Non-lethal bullets such as buckshot or rubber pellets are considered low-caliber.
A 9mm caliber bullet will penetrate a cast iron pan. A .223 caliber bullet will also cut through cast iron.
Yes, the quality of the metal, the speed of the bullet, and the distance from which it is fired all play a role in its ability to penetrate cast iron.











































