So many answers...
Ok, this is the most accurate dose range I can give you..
I will assume you're an opiate virgin - not that you have never done them, but that you don't use them on a regular basis .. a weight of about 150lb is also assumed
Oral:
Hydrocodone - 10mg-20mg to start (this will give you a nice warm feeling but wont lay you out).. if you want to get knocked out, go for 30mg+
Oxycodone - 10mg-15mg to start .. 20mg + is swimming into deep - yet pleasureable - waters ..
Snorted:
Hydrocodone - it's not possible as there is no un-adultrated form of hydrocodone on the market (in the US anyway) .. you would have to either get it from a compounding pharmacy (keep dreaming) or actually snort a crushed Vicodin (or other hydrocodone containing pill).. I won't even give a dose range for this because if you snort these 1g+ pills then you shouldn't be concerned with the dose, hell, most of it stays in yer nose anyway ..
Oxycodone - I am not going to write a long story about Oxycontin, but 10mg is a good starter dose, 40mg being the highest you want to go until yer a seasoned pro (so you don't die)..
Enjoy!
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"When I saw the extent of my empire, I wept, for there were no more nations to conquer"