I didn't read all of the above posts, so if redundant, I'm sorry.

Questions about full ejection of .44 mag cases keep coming up.

I just measured my 4 1/4" M69

From face of cyl to tip of ejector rod: 2.0"
From face of cyl to end of ejector lug: 2.5"

With a 2.75" barrel, that would leave approx .25" of barrel beyond the end of the ejector lug.

So, depending on how S&W executes the 2.75" barrel, you should get full ejection of the fired brass.

Measurements for the 66-8 (357 Mag), also to be offered with the 2.75" barrel, are the same as the M69.

FWIW,

Paul