Several states which have recently become more permissive in the use of cans have used hunting as the lever. Granted, they were not illegal there before being allowed to hunt.
Now, the downside of Delaware is that rifles are not legal, but with pistol hunting being offered, it may help. Framing in the context of population density/hunting areas, would be an angle.
That said, I wouldn't expect it to work. Maybe a few pol's would support but the bulk would fear the millions who would die as a result. (Yes, the last part is sarcasm) it seems a little too D/A2A.
Talking to your reps would be a start.
(and my point about hunting isn't to say it's the only use, but maybe an icebreaker, given that other states are moving in that direction. It could give your request more weight)
Glock'n it wrote:what will it take to liftt the ban of supressors in Delaware or how can we attempt doing so. mabe if we succeed it may open a door to future 2a freedom in the first state.