I am loading some .308 rounds. My goal is to get 2300 to 2500 fps with decent accuracy. The boolit is the Ranch Dog 165 (170 lubed and checked). The rifle is a Tikka with 1in 11 twist.
After conferring with folks on this forum who are shooting. 308 in this velocity range I loaded some rounds with 4831. The charge fills the case pretty full. When the case goes to the M die for neck expansion the powder gets compressed to just at the base of the case neck. The boolit is seated and there is 100% load density.
Is there any potential problem with this compression by the M die?