dance2i need any no B.S. opinions or info on this ammo. your experiences,thoughts. the drive behind this inquiry is that i had an M split with one round and have seen several rounds , HXP70, that were swelled in the head region. these rounds were fired in a favorite M1 that is 1965 rebuild from springfeild. i have owned this M1 for several years and have only fired it approximately 500 - 700 rds.. i have never seen this type problem with LC M2 ranging from '53 to '67 or with LC match. my spent cases gauge right at the top of a dillon cartridge gauge. the swelling is evident in the area of cases not supported by chamber and the problem cases will not fit in case gauge. thanks for any and all comments..