Powerful Engrams

Currently stuck at 304. All weapons are 305.

This is my issue.. I'm a Hunter. Cloak and Legs are both 305. Chest is 303. Gauntlets and helmet are 302.

I make sure I complete the Nightfall, Crucible Challenges, and Raid every week. Leaving me with NO options of obtaining powerful engrams.

So besides Fireteam Medallions and the obvious challenges listed above, does anyone have any legitimate advice for huge drops or powerful engrams to come my way? I also keep getting 299 Exotic engrams, which end up only being 304 and 90% of the time it's a weapon. Which I don't need at all.

If anyone has any advice at all on obtaining powerful engrams (drops at power level or higher) or a method in which I can reach 305 (AND TRUST ME I HAVE TRIED INFUSING AND DISMANTLING EVERYTHING AND IT AIN'T HAPPENIN'), PLEASE HELP.

Sincerely, frustrated gamer.