I didnt say that you said you could not. With that said....you definitely implied that a field grade 3200 isnt suitable for use with steel shot. I simply stated my experience with using field grade 3200s shooting steel shot...and lots of it. Someone else might come along and give their experience shooting steel through one of these guns and what horrors they may have encountered in doing so.....but I doubt it, especially if they took the precautions (right choke combo, proper shell length, moderate velocity etc. and no, Im not an advocate of lengthening the chambers!) .
We all know why Remington said not to use steel in most 3200s back in the day. And we know why using steel in these guns is ok in this day and age.