I agree with Jeep Hammer. At least some Hornady factory ammo brass have crimped primer pockets. It looks like these have crimped primer pockets to me.
Unless you want to spend the time to swage the primer pockets, don't try to force new primers into cleaned brass with crimped primer pockets.
The first thing to do when the primer won't go in relatively easily is not to try and force them in without first checking to see if they have crimped primer pockets.
You can tell there is a crimp if you look carefully, especially if you compare it to non-crimped brass.
You really do have to inspect the brass you are about to reload after you have cleaned it. I would also recommend that you sort the brass by head stamp if you want to load for accuracy.
Unless you want to spend the time to swage the primer pockets, don't try to force new primers into cleaned brass with crimped primer pockets.
The first thing to do when the primer won't go in relatively easily is not to try and force them in without first checking to see if they have crimped primer pockets.
You can tell there is a crimp if you look carefully, especially if you compare it to non-crimped brass.
You really do have to inspect the brass you are about to reload after you have cleaned it. I would also recommend that you sort the brass by head stamp if you want to load for accuracy.