I only really felt morphine when I, ahem, did it anally. Buy a water syringe from a Wallgreen's or a place of the likes, dissolve it in a little water, take a shit, and squirt it up the place where only excrement is supposed to come out. It's comparable to IMing it. I've done 200mg this way once before, though the first time I tried it with 60mg was one of the biggest opiate nods I've ever had to date, and I've fucked around with dozens of different opiates. Watch out though, this route becomes highly addictive with morphine. After a two week binge and and empty pocket, I went through a few days of hell, but it was rather transient with my experiences of withdrawal, it's just not something to take lightly.