Hmmmmm again.
So the 20 gauge Flues may have a problem, but I'm not sure even after re-reading the previous posts whether or not that problem also pertains to the 20 gauge NIDs.
Weren't the NIDs built with a beefer receiver in response to this problem?
As a side note, the elderly gentleman I got my NID from stopped me a couple of weeks ago and said he had found some 2 1/2" shells I could have. I chatted with him for a while, thanked him again, and it was only after I got home that I looked at the partial box of shells he had given me. They were 2 1/2 Dram, 1 oz loads he had been shooting. Not 2 1/2" inch. Certainly a heavier load than I would have ever used but the gun appears none the worse for it.
Will increasing the chamber length to 2 3/4" leave the barrels of my 20 gauge NID possibly too weak?
Regards,
Dan