Gamo BBs Round Pellets – 4.5mm
From: R59
Gamo Round 4.5 mm spherical lead ammunition in selectable 250- or 500-count packs. Official references 6320324 and 6320334; 0.53 g each.
At a glance
- Product family
- Gamo Round
- Calibre
- 4.5 mm (.177)
- Pack options
- 250 or 500
- Projectile weight
- 0.53 g (8.17 gr)
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Gamo Round 4.5 mm ammunition consists of spherical performance-lead balls rather than diabolo pellets. Select a 250- or 500-count option; both use 0.53 g projectiles.
Verified specifications
| Product family | Gamo Round |
|---|---|
| Calibre | 4.5 mm (.177) |
| Pack options | 250 or 500 |
| Projectile weight | 0.53 g (8.17 gr) |
| Material | Performance lead |
| Form | Spherical lead ball |
| Gamo references | 6320324 (250) / 6320334 (500) |
Why choose this pellet
Round lead balls are intended for compatible airguns specifically able to use this ammunition type. Do not substitute them for steel BBs, and do not assume a pellet magazine accepts round balls.
Compatibility and responsible use
- Use only in an airgun marked for 4.5 mm (.177).
- Check the airgun and magazine manual before use; calibre alone does not confirm rotary-magazine fit.
- Test grouping under the same safe conditions because individual barrels can prefer different suitable pellets.
Compare your options
Check the live price and availability above. Compare Gamo Steel BBs 4.5 mm, explore all Gamo airgun pellets, or use our pellet selection guide.
Product identity and technical data were checked against the official Gamo product information and 2026 catalogue.
Shop with confidence: Gamo.co.za is an authorized online Gamo dealer and South Africa’s dedicated Gamo airgun destination.
Reviewed by the Gamo South Africa product team on 25 August 2026.
| Brand | Gamo Airguns |
|---|---|
| Size | 250 Pack, 500 Pack |
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