Bullet hit squib

's on-screen 'death' in Bataan (1943). From early to modern day use Bullet hit squibs were first used in the film industry as early as 1943 in Bataan, with the latter using fake blood added in a condom and a squib, a technique still widely in use today. The use of squibs in filmmaking has become a widely accepted and well-established technique for creating convincing and realistic depictions of violence. This approach has been used in many classic films such as The Matrix (1999), Goodfellas (1990), and The Terminator (1984). Despite advances in digital effects, practical squibs are still widely used due to their ability to produce authentic, in-camera effects that enhance the overall atmosphere and intensity of a scene. While CGI can be employed to augment or replace squib effects in certain situations, the physicality and immediacy of practical squibs continue to make them a valuable tool in special effects for film and television. Bullet hit squibs can also be used in first responder moulage training and music videos, for example 99 Problems (2004). Related advancements The earliest patent related to the manufacturing and chemical composition of bullet hit squibs was submitted in 1991. Since then, from the 2000s, a number of notable design or manufacturing features have been patented. Advancements include specific methods and chemical compositions to manufacture the squibs themselves, such as without heavy metals; a wearable, reusable pneumatic system that eliminates the need for explosives by using compressed air to expel fake blood through a small outlet. Another design incorporates traditional squibs but is pre-manufactured and nearly fully assembled, reducing on-set assembly time. This standardised design, however, limits customisation in terms of blood volume, spray pattern, etc. == Device and costume preparation and implementation ==

In film productions, multiple crew members, including pyrotechnicians and costume designers, work together to create realistic blood squib effects. Pyrotechnicians are responsible for building the squibs, while costume designers prepare multiple identical outfits for the actors. Collaboration among writers, directors, producers, and actors is essential for determining the number and placement of squibs, as well as costume design. Depending on the budget, productions typically use between three and six, and sometimes eight costumes to accommodate various takes, camera angles, out of sequence filming, dress rehearsals, backups and tests. This can become costly, especially for low-budget filmmakers, leading to trade-offs between the number of character deaths, takes (i.e. costume duplicates), and the number of squibs (i.e. multiple hits) used. An overview of the device and costume preparation is illustrated in the gallery below. File:Blood pack and bullet hit squib.jpg|A 15g packet of fake blood next to a 0.5 grain squib with a solid polycarbonate shield. File:Bullet hit squib assembly.jpg|A bullet hit squib device with approx. 25g of fake blood in a plastic pouch, assembled with duct tape. File:Step 1- marking out the bullet hit squib locations.jpg|Bullet hit locations marked out with white stickers. An assembled device is placed temporarily on the costume for reference. File:Step 4 - aligning and attaching the squib device.jpg|The inner taffeta lining cut open, where the device is aligned to the hole and secured with duct tape. File:Bullet hit squib installed on the left chest of the costume.jpg|The view from the outside where the squib is aligned subtly with a prescored cross. Bullet hit squib device The actual squib used in movies is a flat, disc-shaped explosive about 0.5–2 mm thick and weighing between 2 and 384 mg, with the most common variants at 0.5 and 1.0 grain (33 to 65 mg) of high explosive. For comparison, a low explosive party popper is approximately 0.25 grains (15 mg), and a small firecracker is about 2.5 grains (150 mg). These squibs are used to create both entry and exit wounds, often accompanied by 10–30 ml of fake blood, depending on the fabric's absorbency and the desired visual aesthetic. The assembled blood squib device is designed with a low profile to minimise bulge through the costume. Fake blood is typically filled in a small balloon, packet, or condom placed on the squib, followed by a grooved protective plate and padding. glycerine (night scenes), or dry substances like dust are used depending on the desired effect. Costume considerations for blood squib effects as the stunt costume for a movie with six blown open "bullet holes" and fake blood stains. Stage clothes modified for actors playing characters killed on screen are modified to conceal special effects equipment such as squibs and wiring, For gunshot wounds depicted on bare skin, prosthetics may be used instead. Several "distress doubles" or "stunt" costumes with pre-scored bullet holes are usually prepared for main characters to accommodate multiple takes and camera angles. These copies may be a size or two larger to cover for the additional equipment and padding. grating or plunging a scoring tool producing a crosshatch pattern, jackets (e.g. waterproof, parka and down) and other durable clothing may be reused if the bullet holes are crosshatched in well-defined, clean-looking cuts. However, it is advisable to minimise the time spent in the stunt costume to avoid accidental damage to the squibs, such as sitting against a chair with back squibs or spilling liquids that could affect the costume or the equipment. Once a take is successful, the wardrobe department photographs the "aftermath" to maintain continuity and prepares for the next take, scene, or clean up, or saves them for reshoots. Additionally, sound design further enhances the impact of gunshot effects. == Production costs for bullet hit squibs ==

The making of bullet hit squib effects involves several expenses, including raw materials, labour, permits, and costumes. The primary component, squibs, generally cost between $20 and $60 each. Fully assembled devices – including fake blood, plastic packets, duct tape, wiring, and protective shields – can cost around $150-300. Preparing squibs for a shoot can require approximately 10–20 minutes per unit, an entire day for assembly and another day for costume setup, typically overseen by specialised pyrotechnicians who manage setup, testing, and detonation during filming. Costumes are another significant budget factor, especially with multiple outfits required to accommodate retakes. Using jackets shown on the right for a winter shootout scene as an example, with one reserved as the hero costume, one for testing, three for the stunt and another for dress rehearsal, totalling an estimated wardrobe budget of $3,000 at around $500 each without accounting for other wardrobe pieces. Fitting 30 squibs, or six each to the testing, stunt and dress rehearsal duplicates, would cost approximately $4,500-9,000, bringing the material costs alone for this stunt to approximately $7,500-12,000. In certain cases, selecting a more powerful squib (such as D80-1 instead of D80-¼ or D80-½) allows costumes to omit the pre-scoring step, enabling unused costumes to be retained or refunded after filming. Labour costs, including hiring technicians and obtaining location-based permits, further contribute to the budget. Rehearsals are sometimes conducted to acquaint with the effect and to speed up the filming process. The underlying cost of one take with ten squibs can be approximately $7,000 to $40,000 on set, excluding director, cinematography and talent. == Health and safety considerations ==

Safety protocols and permit requirements The production company is responsible for ensuring safety when using firearms, explosives, and squibs on film sets. Special permits to notify local authorities are needed for squib use—specifying the number of takes, number of squibs per take, types of squibs and distance from talent. Only licensed technicians may handle explosives, and strict safety measures, including personal protective equipment, must be observed. Incidents, including misfires or injuries, are documented and response protocols in place. Technician qualification The handling of squibs is restricted to trained professionals, usually those with a T2 pyrotechnics licence. Squib device assembly, however, is often learnt on the job, leading to variations in production and safety methods among technicians. There have been reported cases of ad-hoc squib manufacturing, even in professional settings, causing injuries due to inconsistencies in construction or inadequate safety measures. Personal protective equipment and risk management Like conducting fireworks, shooting a scene with blood squibs starts with a thorough risk assessment to identify hazards, such as the squib placement on actors, environmental risks such as weather, location and crowd in a public space, and risk mitigation emergency protocols such as misfires, medical plan, PPEs and emergency stop mechanisms are in place. To protect the actor from the blast of the squib, a lipped shield made of metal or dense plastic with soft padding is typically used as the base of the squib device. Prescoring the costume and consistent alignment of the squib and hole minimise the explosive force needed. A two-step ignition process is often used, controlled by both the actor and the crew to prevent accidental triggering. It typically involves two separate actions to arm and fire the squib. For example, the first step might arm the device by connecting the power, while the second step would trigger the squib. This setup ensures the squibs are detonated only when both steps are intentionally completed. While some productions have moved to safer alternatives like pneumatics or digital effects, commonly used squibs, such as the D-60 and D-80 series made by De La Mare, still contain lead, contributing to ongoing health concerns in the industry. with, for example, silver azide, are emerging, which also enables a "better picture" due to less smoke produced, faster detonation flash and higher detonation pressure. == Alternative practical bullet hit devices ==

Filmmakers with limited budgets can create a similar effect without squibs by using a fishing line attached to a washer glued onto a blood pack, pulled through a precut hole. Alternatively, rocket igniters or electric matches can be employed. However, these methods lack the initial burst from squibs and typically produce only a stream of blood. More advanced methods using pneumatics (compressed air) emerged in the 2010s, offering safer options without needing pyrotechnicians, thereby reducing costs. An example is shown in the accompanying picture. However, they are bulkier, heavier, harder to control, and less reliable and not preferred for multiple bullet hits. Despite not using explosives, they may still be erroneously referred to as "squibs". Initially developed from garden sprayers in the early 2000s, these devices have been refined, but the resulting effect is less convincing with a jet of blood spray instead of an aerosol burst, and rigid tubing is difficult to conceal. If the pneumatic system is worn by the actor, the outlets need to be precisely aligned with the garment, as they do not blow a hole through the costume. Alternatively, if it is built into the costume itself, multiple systems are required for each setup. == Notable statistics ==

The record for the most squibs ever set off on a person is held by Mike Daugherty in 2005, on whom 157 out of 160 squibs successfully detonated. Approximately 130,000 squibs are used each year in the filming industry. ==See also==