Every now and then I see claims that 4756, when loaded above current specs, gives high velocities at lower pressures. Where does the pressure data come from? Not from current loading tables, certainly. Has somebody paid for lab tests? I sometimes wonder about published data. Hodgdon, for instance, publishes data for LilGun indicating impressive velocities at remarkably low pressures. My chronograph tells me, however, that their velocity figures are materially overstated. If I loaded to published velocities would LilGun still provide very low pressures? I doubt it.