I have two barred rocks that lay eggs just like that. Did yours start out like that? the one girls first egg was just that long but really skinny and then just started getting fatter as time went by.It was kind of weird having eggs taller than an egg carton but skinny enough to fall over when you put it in there.
I have a production RIR that lays eggs just like those. As a pullet her eggs looked more normal. But this year they got longer, and sometimes lumpier. "Torpedo" is exactly the word we use. The lid on an egg carton doesn't even come close to shutting on them.