Nielson Ammo 15.5 gr .177 Slugs
Unlock the full potential of your .177 PCP air rifle with NIELSON AMMO’s precision-engineered 15.5 grain slugs. Crafted from soft, pure lead and swaged to razor-sharp tolerances, these slugs deliver unrivaled accuracy shot after shot. Whether you’re stalking small game at dawn or fine-tuning your target setup in the backyard, these hollow-point pellets expand on impact for clean, humane kills—making every hunt more responsible, efficient, and satisfying.
Meticulously tested in Daystate factory, LW, and TJ barrels, NIELSON’s .177 slugs have proven their consistency in real-world scenarios. You’ll experience tight shot groups, consistent trajectories, and the reassuring knockdown power you need to connect on fast-moving targets. And with a ballistic coefficient of .062, they slice through wind drift and maintain energy even at extended ranges, so you can push your rifle farther and still hit your mark.
Designed with a flat base for rock-steady flight and a 2S hollow-point nose for maximum expansion, each slug measures .266 inches in length and weighs precisely 15.5 grains. They’re optimized to feed smoothly in most break-barrel and PCP rifles—just be sure to pair them with Daystate or the new FX X-Barrel. (Important: avoid using these slugs—or any solid bullets—in original Smooth Twist FX barrels to prevent damage.)
Every pack contains 100 premium slugs, ready to go from your bag to the barrel. Whether you’re a seasoned hunter or a precision-obsessed target shooter, you’ll appreciate the combination of velocity, energy transfer, and pinpoint consistency that only NIELSON AMMO can deliver. Elevate your next outing with slugs that inspire confidence—take aim, pull the trigger, and watch your performance soar.
Key Features and Specifications
- Precision-swaged 15.5 grains: delivers consistent velocity and tight groupings
- 2S hollow-point design: ensures rapid, controlled expansion for humane ethically responsible shots
- Flat-base profile: stabilizes flight, reduces yaw, and improves long-range accuracy
- Soft-lead composition: balances penetration with expansion for versatile hunting performance
- Ballistic coefficient .062: resists wind drift and maintains energy over distance
- Length .266 inch: optimized for smooth feeding and reliable chambering
- Pack of 100: ample supply for extended practice or multi-day hunts
- Barrel compatibility: proven in Daystate LW/TJ and FX X barrels; not for original Smooth Twist FX barrels
Please check out other Neilson Ammo products.









