Too deep for me. All I can do is guess.
More to the point, with the same velocities, the pressures would be, I think, very close to being the same. So, why be concerned. Now if you were working on a bench rail gun, maybe but then...
I would be more interested in making certain that the OAL is good for any and all weapons that I may want/need to use them in.
Many years-a-go, I loaded up some .357 Mags. They worked great in my S&W Model 19. BUT were too long for my S&W Model 27 and Model 28's cylinders. That could have been a bad surprise if I hadn't checked them.
I want to see what the internal ballistictisons (that's not how to spell that) say about your question.
Keep it safe,