• 510/.50 caliber
• 388 grains
• Hollowpoint
• 20 count

These Umarex SLA - Solid Lead Ammo 388 grain slugs deliver ideal results, particularly for big bore, big-game hunting. Specifically designed for powerful .510/.50 caliber air rifles such as the Umarex Hammer, these slugs feature superior energy transfer and maximum expansion to yield the hydrostatic shock necessary to take down prey quickly.