H&N Slug HP .177 PCP Slugs – 20 gr

The heavyweight extreme of the ONE77 .177 slug range.

At 20 gr, H&N Slug HP carries more than twice the mass of many everyday .177 pellets. Its streamlined slug geometry gives it a very high ballistic coefficient, while the substantial projectile mass creates a very different shooting characteristic from conventional diabolo ammunition.

In an Indian sub-20 J PCP, ONE77 sees this primarily as a specialist short-to-medium-distance projectile, particularly for shooters experimenting with reactive targets where projectile momentum may be more useful than high velocity.

It is not our recommendation for everyday PCP shooting.

Key Specifications

• Brand: H&N Sport
• Model: Slug HP
• Caliber: .177 / 4.5 mm
• Weight: 20 gr / approx. 1.30 g
• Projectile Type: Airgun Slug
• Head Profile: Hollow Point
• Quantity: 250 slugs
• Minimum Energy: 16 J — manufacturer specification
• Ballistic Coefficient: Approx. 0.094
• Manufacturer Rated Distance: Up to 100 m
• Material: Lead
• Country of Origin: Germany

ONE77 Pellet Fit Guide

Recommended For: Carefully selected, compatible PCP air rifles

Best Use: Specialist heavyweight slug experimentation and suitable reactive-target shooting

ONE77 Use Case: Short-to-medium-distance applications where impact momentum is prioritised over velocity and trajectory

Use Frequency: Specialist/occasional

Not Recommended For: Springer, nitro-piston or underlever rifles; general-purpose PCP shooting

ONE77 India Fit Note: At India's sub-20 J energy level, a 20 gr projectile will have considerably lower velocity and a more pronounced trajectory than a conventional .177 pellet. Its advantage is not “more power”—the rifle's energy remains limited—but greater momentum at a given energy.

Accuracy and stability must be established in the individual PCP before regular use.

What's Included

1 × H&N Slug HP .177 – 20 gr tin

250 slugs per tin

Please Note

H&N's international 100 m rating describes the product's intended design envelope and should not be interpreted as ONE77 recommending 100 m shooting with Indian sub-20 J PCPs.