The bulge is all the way around I would be willing to bet. So what now?
As I said before, some brass is thicker and sizing it makes all of it the same outside diameter. All of the bullets are the same diameter [I would also be willing to bet]
I get a few rounds like that with .40 and 9mm. They still chamber but because the wall is thicker it needs to be taper crimped more. No brainer.
A factory crimp die will work too but it will swage the whole round smaller in diameter which is not what needs to be done.
Start out simple and simply tighten the taper crimp die and see if they drop in. Why re-engineer your whole set up and OAL when it probably does not need to be done.
If it doesn't work go from there.
I had the same problem with my sig scorpion 1911. All my rounds go into a lee full length sizer die and checked with a Wilson gauge however my sig likes 1.18 with a 185 FP bullet.
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