Is this OK? I have quite a bit of military 7.62x51, OK to resize and load with .308 dies? I understand the cases are almost identical, except maybe a few internal dimensions. I have ran a few of these through my .308 resizing die, and it took a little effort, I thought one was gonna break off in the die. And I have noticed that I have to swage all the primer pockets too, I guess it's a crimped primer? Seems like the 7.61 is a little beefier brass as compared to the .308. My rifles is chambered in .308