Alright, first week of me raiding in wotlk, i get the gun from 10man naxx KT. Hurray. Last November iirc.
Run 25man Naxx until Ulduar, no Envoy in sight. (i missed one week and it dropped for rogue)
Run 25man Ulduar, Kologarn every week except first 2 weeks, no gun from him either. As well as hardmode XT 10man at least 10 times.
(thankfully 5man ToC gun came out)
Now in ToC, no ranged weapons drop in 10man or 25man yet.
This is ridiculous considering Ive seen rogue daggers drop nearly every goddamn week. Holyshit.
Currently using ToC 5man gun.
/rage