Nielsen Specialty Ammo slugs are specially designed for use in airguns. This is a hollow point nose with a dish base.
You may notice a white film on the inside of the bag or on the slugs.  This is lube and is supposed to be there.  It helps with barrel leading and improves accuracy.

24.8 grain / .22 caliber -NSA 

This is our newest slugs from our new high speed press.  The new press reduces our labor cost which is now reflected in our retail price.  This is a hollow point nose with a dish base.

Number of slugs per box: 350  / 40 slugs for sample packs

Length is .308"

BC: 0.080

Diameter available in this slug: .216, .2165, .217, .2175, .218 

Sample packs available on a per weight basis and are 40 slugs per pack in 22 caliber