If you are using it orally, you can just use the same needle over and over to get it out.
We also did this when I worked at a large stables. Its fine for small herds to use tubes, but if you have any size to a herd, its definitely better to use the cattle injectable orally.
Agree greatly on the trash from paste deworming a big herd. I wish some of the horse dewormer companies would do like Safeguard did and make a large tube for big herds.