So the first load put together for the 145 grain .277 ELD-X:

50.5 grains of IMR 4451 loaded 2.75 OG With Winchester LR primer. Haven't shot it yet (probably this next weekend) as I'm bedding the 22-250 and will have some time after putting it in.

BTW, anybody else found a seating stem for the ELD-X that doesn't put a crease in the jacket? Can't believe how soft the jackets are....? I guess that's how they get them to open up at 1600 FPS?