I checked tonite, and found the two that would not chamber were indeed a tad longer than what I had written down (I fired the other eight, so obviously couldn't measure those). I had written down 1.315, and these two measured 1.320. That was just enough. Bumped them deeper, to 1.310. One was good to go, but the other still would not fully enter. Apparently, I never sized that bullet because the exposed front band measured .360...this revolver has tight cylinders.....I loaded a dummy at 1.310 and was able to still give a light crimp into the crimp groove, and it inserted completely without having to push it. I will measure and record the oal to the shoulder, rather than to the button nose, as that is what actually matters.... Time to load up the remaining handful, and will give this mold another try this weekend.