I'd feel gyped if I didn't get close to 20.
I'm using my first 20ml vial now: Test-E (GA Labs).
I'm keeping a seperate log report just to see how much I lose to needle wastage, and possible shortages.
anyone else ever keep track? trying to figure out how many vials i need this summer..i ended up getting 18 out of a vial of test e last time...but i figure prop has more shots..so your wasting more due to the needle wastage...
They say you lose 1/10cc per inject. So that would mean you would lose 2cc's if you were shooting 100mg/inject. I always draw up about an extra 1/5cc when injecting to account for the little bit of waste left over.