63k vs 60.....ive read that hornadys brass dosent stand up to that pressure to well, but thats just what the interwebs said. From my own personal experience ive driven the 143eldx well beyond book max velocity with only flatish primers to suggest im at limit.
The .260 only has about a grain more capacity (i was thinking it was closer to 4gr) so given the pressure difference your right (im playing with quickloads), they are almost exactly equal.
When both loaded to the same pressure the difference is less than 100fps, for some reason i was thinking it was more than that.
The .260 only has about a grain more capacity (i was thinking it was closer to 4gr) so given the pressure difference your right (im playing with quickloads), they are almost exactly equal.
When both loaded to the same pressure the difference is less than 100fps, for some reason i was thinking it was more than that.