Nielsen Specialty Ammo
Nielsen Specialty Ammo manufactures precision slugs and pellets specifically designed for today's high-powered PCP air rifles. Unlike mass-produced pellets, these are custom-swaged ammunition built to exacting standards for hunting and sport shooting. NSA produces slugs across a wide range of calibe...
Own Nielsen Specialty Ammo?
01 // DETAILS
Business Details
Full description and what we offer
Nielsen Specialty Ammo manufactures precision slugs and pellets specifically designed for today's high-powered PCP air rifles. Unlike mass-produced pellets, these are custom-swaged ammunition built to exacting standards for hunting and sport shooting.
NSA produces slugs across a wide range of calibers:
| Caliber | Typical Weights | Per-Round Cost |
|---|---|---|
| .17 (17 Cal) | 12.5 - 20.5 gr | $0.04 - $0.053 |
| .20 (20 Cal) | 14.9 - 18.9 gr | $0.057 - $0.06 |
| .22 (22 Cal) | 17.5 - 31.2 gr | $0.057 - $0.076 |
| .25 / .257 Cal | 33.5 - 75 gr | $0.083 - $0.191 |
| .30 / .300 / .303 Cal | 43.8 - 61.5 gr | $0.106 - $0.158 |
| .308 Cal | 65 - 120 gr | $0.21 |
| .35 Cal | 79 - 142 gr | $0.168 - $0.23 |
| .45 Cal | 196 - 350 gr | $0.42 - $0.67 |
| .50 Cal | 235 gr | $0.60 |
| .510 Cal | 388 gr | $0.80 |
Each slug is swaged from soft alloy to deliver consistent expansion on game. The slugs feature hollow-point nose designs with dish bases—geometry proven effective in hunting applications. They're manufactured specifically for airguns like:
- •Airforce Texans
- •Seneca Big Bores
- •FX air rifles
- •Daystate PCP rifles
- •Edgun air rifles
- •American Air Arms
- •Most quality PCP systems
Get 12% off orders of $300 or more - plus free shipping on all USA orders over $100 (shipped USPS flat rate).
Nielsen's FAQ covers the critical questions shooters actually ask:
Diameter matters most. If you've shot .452 slugs before, don't jump to .457 just because they're both "45 caliber." They shoot completely different. Measure what already works in your gun using calipers or a micrometer.
Weight is gun-specific. The shop recommends testing pellets that travel 800-975 FPS in your setup—this varies by barrel, tune, and individual rifle. Heavier slugs generally produce better power and accuracy when they fit your barrel properly.
Test before committing. 22-caliber shooters can grab their 22 Cal Sampler (160 slugs, $13.99) to try multiple weights. NSA warns: they don't accept returns because all their slugs work in the right gun—you need to know your barrel diameter and preferred weight before ordering.
Nielsen ships from their Ohio warehouse. Orders placed by noon Eastern ship the same business day (weekends/holidays excluded). During holiday season expect 1-2 additional days. They use USPS flat-rate shipping exclusively—no UPS or FedEx.
Note: They no longer offer custom non-stock weights and don't accept returns. International shipping is discontinued due to customs complications.
The site includes calculators and guides:
- •FPE (foot-pounds energy) calculator
- •Swage vs. Cast comparison
- •Hunting pellet selection guide
- •Big Bore Slugs for Airforce Texans (specific guide)
- •Big Bore Slugs for Seneca Big Bores (specific guide)
- •Airgun hunting laws by state
"The best weight is the heaviest pellet/slug you get good results with in your gun." - Nielsen's tuning philosophy
Shooters looking for anything outside the menu should email [email protected] before ordering. NSA focuses on what's in stock—not custom jobs.