To recon anything divide the total amount in the vial by the amount of water you put in, the amount of water doesn't effect the dose of peptides. More water = more liquid to inject
The first time I did Reta I added 10ml of bacteriostatic water to 10mg of Reta and had to pin an entire milliliter everytime, now I add only 1ml to 10mg so I only have to pin 0.1 ml and I get the same exact dose