SLUGS

Airgun Slugs vs. Pellets

When to Choose Slugs Over Pellets

Traditional diabolo pellets are extremely accurate at short to medium ranges out to roughly 50 to 60 yards. Their waisted shape and flared skirt create high drag, which stabilizes them quickly but also bleeds velocity and energy rapidly beyond those distances. Slugs have a far superior ballistic coefficient, meaning they retain velocity and energy much further downrange, resist wind drift better, and maintain accuracy at 100, 150, and even 200+ yards in capable setups. The trade-off is that slugs demand more from the airgun: a PCP platform producing at least 30 foot-pounds of muzzle energy (with 40+ foot-pounds recommended for consistent results), a barrel with the correct twist rate, and careful velocity tuning. Pellets remain the better choice for lower-powered springers, CO2 guns, and any shooting under 50 yards where their inherent accuracy and lower cost per shot make them the practical option.

Airgun Slug Brands at Utah Airguns

Each slug brand brings a different approach to projectile design, material composition, and weight distribution. Understanding what sets them apart helps narrow the selection to slugs that will perform best in your specific airgun and barrel configuration.

FX Hybrid Slugs

• FX Hybrid Slugs combine the high ballistic coefficient of a traditional slug with the lighter weight of a pellet. The design features a completely hollow core and deep recessed base, which keeps the projectile light enough to be shot from most PCP air rifles producing 30 foot-pounds or more of muzzle energy. The deep hollow point promotes reliable expansion on impact, making Hybrids a strong choice for hunting. Available at Utah Airguns in .22 caliber (22 grains), .25 caliber (26 grains), and .35 caliber (68 grains), they pair well with FX Smooth Twist X barrel systems using the standard Superior STX liner optimized for lighter projectiles. Utah Airguns also carries the FX Halo Slugs in .30 caliber (46 grains), which share a similar design philosophy with a slightly heavier profile.

JSB KnockOut Slugs

• JSB KnockOut Slugs are among the most widely tested airgun slugs on the market. The design features a flared skirt that improves stability in flight and helps seal the bore for consistent velocity. The .22 caliber version weighs 25.39 grains and is available in .216 and .217 diameter options. The .25 caliber weighs 33.49 grains in .250 and .251 diameters, both with a hollow point nose. JSB also produces KnockOut slugs in .177 and .30 caliber (50.15 grains). JSB has released updated Mk. II and Mk. III versions with refined skirt profiles for improved accuracy. Shooters consistently report sub-MOA groups at 100 yards when running KnockOuts at velocities above 900 FPS in a properly tuned PCP.

H&N Slugs

• H&N (Haendler & Natermann) offers multiple slug lines for different shooting applications. The Slug HP is their standard hollow point, available in .22 caliber in weights from 21 to 30 grains and in .25 caliber, recommended for PCP rifles producing at least 25 joules (roughly 18.4 foot-pounds) of muzzle energy at minimum, with 40 to 60 joules (29.5 to 44.3 foot-pounds) for optimal results. The Slug HP II features H&N's T-Slot hollow point, a two-stage cavity where the shallow upper angle initiates deformation quickly and the acute lower angle drives deeper expansion. The T-Slot design is applied to the 25, 27, and 30 grain .22 caliber variants, as well as .30 caliber options. The H&N Precision Slug in .22 caliber (33 grains) is built for long-range accuracy, with a G1 ballistic coefficient of 0.140 that delivers flatter trajectories and better wind resistance than lighter options. Utah Airguns also carries the Slug HP Heavy line in .22 and .25 caliber for shooters running higher-powered platforms.

ZAN Projectiles

• ZAN Projectiles is one of the largest slug manufacturers in the airgun market. Produced in Slovenia by a former precision rifle champion, ZAN slugs feature a boat tail base and deep hollow point designed for expansion at both high and low velocities. Utah Airguns carries ZAN slugs across calibers from .177 through .457, including standard hollow point lines, ELR (Extreme Long Range) slugs in .22 caliber (42.3 grains) and .25 caliber (61 grains) with high ballistic coefficients optimized for distance shooting, and lead-free slugs for areas with restrictions on lead ammunition. The lead-free line offers up to 25% higher velocity than traditional lead alternatives while maintaining a hollow point design for controlled expansion.

Nielsen Specialty Ammo, AirMarksman, and Other Brands

• Nielsen Specialty Ammo (NSA) produces swaged slugs in calibers from .177 through .308, with multiple weight options in each caliber. NSA slugs are swaged from soft lead for reliable expansion and are available in hollow point configurations across all calibers carried at Utah Airguns. 

• AirMarksman's ACE Precision Slugs are competition-grade projectiles with a G1 ballistic coefficient of .245, available in .22 caliber at 40.1 grains (.2175 diameter) and 42 grains (.218 diameter). The ACE line was developed collaboratively by AirMarksman, Corbin Manufacturing, and Utah Airguns, and its performance has been independently verified by Applied Ballistics. AirMarksman also produces FRAG Frangible Grenade Slugs in .22 caliber (40.1 grains), designed to fragment on impact for hunting applications. 

• Impulse Air HBT slugs (featuring hollow body technology with a concave base for high BC), Patriot Javelin slugs in .22, .25, and .30 caliber, AEA Long Range Master slugs in calibers from .25 through .72 (including .58 caliber at 450 grains and .72 caliber at 500 grains), and Umarex slugs including the 550-grain .510 caliber hard cast slug designed for the Umarex Hammer platform.

How to Choose the Right Airgun Slugs

Slugs are more demanding than traditional diabolo pellets when it comes to matching ammunition to your airgun. The right slug depends on your barrel type, twist rate, power level, caliber, and intended use.

Match Your Barrel and Twist Rate

• Slugs require a faster twist rate than traditional pellets to stabilize in flight. Most pellet barrels use twist rates between 1:20 and 1:30, while slugs generally perform best with rates between 1:10 and 1:16. This difference exists because slugs, unlike pellets, have their center of gravity behind the center of pressure and rely on gyroscopic spin for stability rather than drag. Most modern PCP air rifles with slug-capable barrels use twist rates optimized for slug weight and caliber. The FX Smooth Twist X barrel system, for example, allows swapping between standard and heavy liner inserts, so you can run a standard Superior STX liner for lighter pellets and Hybrid Slugs, then switch to a Superior Heavy liner for heavier slug projectiles. If your airgun has a pellet-only barrel with a slow twist rate, slugs may not stabilize and accuracy will suffer. Check your airgun's barrel specifications before buying slugs.

Weight and Caliber Selection

• Heavier slugs carry more energy downrange and resist wind drift better, but they require more power from the airgun to reach the velocities needed for stable flight. For .22 caliber PCP rifles, slugs typically range from 20 to 42 grains. Lighter options like the FX Hybrid at 22 grains work well in moderate-power rifles, while heavier slugs like the H&N Precision Slug at 33 grains or the AirMarksman ACE at 40.1 grains demand higher power settings. For .25 caliber rifles, expect slug weights from 26 to 61+ grains, and .30 caliber options run from 44.5 to 68+ grains. Slug diameter matters as much as weight. Many manufacturers offer the same slug in multiple diameter options (for example, JSB KnockOuts come in .216 and .217 for .22 caliber) because even a thousandth of an inch affects bore seal and accuracy. The best approach is to buy small quantities of two or three brands and weights, then test them through a chronograph and on paper at your intended shooting distance.

For Hunting vs. Target Shooting

• Hollow point slugs like the FX Hybrid, JSB KnockOut, and H&N Slug HP II expand on impact and transfer energy more effectively into the target, making them the preferred choice for hunting small to medium game. The H&N T-Slot design offers a two-stage expansion profile, and AirMarksman FRAG slugs are built to fragment on impact for maximum energy transfer. For pure target shooting and long-range precision, a heavier solid or boat-tail slug with a high ballistic coefficient will hold tighter groups at distance by resisting wind drift and maintaining a flatter trajectory. The H&N Precision Slug (.22 caliber, 33 grains, BC of 0.140), AirMarksman ACE (40.1 grains, BC of .245), and ZAN ELR boat tail designs all fall into this category.