Im so jealous, I long for the days where 10mg's or less of oxycodone would do the trick for me, if it ever did. I dont think there is a set time to redose, it just depends on how each individual feels. Some people can snort an OC80 and feel as if they need to redose only after a couple hours, some can feel the effects 4 or 6 hours. Just stay within your limit, and I would advise you to keep your tolerance low, set a maximum, 20 or 30mg's, and never go over it under any circumstance. Even though 30mg's or 80mg's may seem like an impossible amount to take, if you use daily you can get there in no time.