Works great with my son's Rifle, just make sure you have the proper gun for this ammo. Although I find little bullets in my house and lawn, my 4.5 year old loves the set up. He is able to load his rifle by himself and the pellets are soft and hollow so they don't hurt if accidentally hit by one but do shoot pretty straight.
The bullets were all attached and when they were removed from each other you had to use an exacto knife and trim all the little parts of plastic off. If you did not do this to each one the bullets would become stuck in the barrel of the gun.
My son has lots of cap guns of all types. Most of the caps just don't work that well. These Sportsman Extra Air Soft Ammo work great and are reuseable. The nice bright color makes them fairly easy to find too. My 6 year old is very happy with this gun and soft ammo!