Thread: seating die is pulling out bullets

Bit of an update here, a member helped me out and had a go on his press, went through everything from annealing to case trimming, etc.
We are thinking the flat bottom CAC projectiles are part of the problem, they measure .311, but we loaded some HXP projectiles and loaded nice and tight, i cant shift it no matter how hard I try.
the HXP ones are slightly round at the base, my theory is somehow the flat base is grabbing a bit and pushing the neck out more?
Anyone else have experience loading these projectiles? I know a fella who uses them so might hit him up for advice.
I also believe that the forster dies are best for loading these, but would like to hear from others before investing in an expensive die set.