The thing we are all forgetting is it was the original .280 factory loads that were "wimpy" and specifically downloaded for pumps/autoloaders. The original .280 150 gr load was 2810 fps and according to chronograph reports of the day they didn't meet this velocity (hence the bad rep). .280 loads were stepped up to 2900 fps during the 7mm Express days and stayed there ever since, but this seemed too late as 7Mag was super entrenched by then and .270 guys were happy with .270s. I doubt .270 factory loads are loaded hotter than .280 these days - they have been stepped down from 3160 to 3140 to 3110 to 3060 over the years. To say the current .280 factory velocities are "wimpy" is not true - they are above .270 velocities by 40 fps which is about one would expect when a .280 & .270 are loaded equally. You can improve on both the .270 & and .280 factory loads a bit by handloading.
Lou
