I ordered samples of the Bayou 180's and 155's and am having the same issue as the OP.
These 180's are loaded to 1.140 for my XDM. I've dropped them into the chamber and they fit just like the first pic above. I've also hand cycled the slide, and the slide went fully into battery, but when ejecting the round it did not release smoothly - it was stuck - mildly, but stuck.
I'm not concerned with test firing these but will there be any issues/damage to the chamber in the long term if I continue them?
In case it's not obvious the second pic is with the chamber gauge turned upside down, and as noted earlier in the thread the ogive is where the coated bullet is too wide for the gauge.