I had o e of those NEF single shot 12s, 3 1/2" chamber. Absolutely brutal with 1 1/4 Oz duck and pheasant loads.
What made it so bad was it was factory equipped with a high comb stock and was not drilled and tapped for a scope. Dumb move on their part.
Kept it in the shop for a bit but decided somebody else needed it worse than I did. Don't remember if I sold or traded it but good riddance for sure.
If I wanted a single shot it would be a 20 and even then you will know when it goes off with anything much more than a standard field load.
