Using a 115 gr. Hornady XTP in two 9mm pistols: load is WIN 231 4.9 gr. (which is 0.20 gr. under the MAX) per the LEE load data that came with their die set.

When loaded at an O.A.L. of 1.125" (their suggested figure) the bullets will not pass the "plink test" in a 3rd Gen chamber. No problem with the CZ-75, which supposedly has a more restrictive chamber, but has in my experience no problem chambering or functioning with ANY factory ammo I have ever encountered. Most factory hollow point 9mm loads are much, much shorter, according to my measurements, BTW.

Loaded 0.005 deeper (i.e., @ 1.120") there is no problem at all with the 3rd Gen.

What is the practical estimated difference in seating the bullet 0.005" deeper vis-a-vis pressure? At 0.20 gr. of WIN 231 under the published MAX, is it really too small to have any real negative effect on this being a "SAFE" load?