I didn't catch the part about the hacksaw before I posted. I have a hacksaw on the truck in case my power saws break, but I haven't used it in years. I'm way too old for a hacksaw.

Try getting something flat and flexible like a piece of paper and line it up on the cut. Mark all the way around with a sharp black marker, throw the pipe against your knee, and hit the saw switch. A quick hit with a reamer or four-in-hand, and you're done.

Dave