If both bullets were tested in the SAME pressure-barrel--and pressure-system, with the same batch of H414, and both bullets seated the same distance from the lands, then the difference might very well be reversed. In fact I would bet it would, due to considerable experience in various pressure labs--and handloading different bullets and powders in the SAME rifles.

The reason we don't know how close both bullets were seated to the lands is the simple cartridge overall-length information used by most loading manuals doesn't provide that information. In fact, it's usually the maximum OAL listed by SAAMI, which has nothing to do with pressure or accuracy, but whether the rounds will fit in the standard-length magazine.

Which is why I use every available source of pressure-tested loading data when starting to work up loads. And DON'T have a "favorite" source....


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