All, I told Waksupi (on the Aimoo site) that I adequately re-formed my new .284Win. brass by adjusting my FL die so it left ~1/16" of the neck unsized and that such would chamber in my rifle. Boy, was I ever wrong : You've got to adjust the FL die so that it makes firm contact with the shellholder; load and fireform it, FL resize it and then anneal it (You have to use the M-die of course.)
I did this very thing today, but found the accuracy with the Lee "soupcan" was less than stellar, probably because I haven't fired a long gun in over 6 weeks. The load I chose was 14gr. WC 820 + Win. LR primers with the Lee CB @ .309" & 2.42" OAL. This gave me essentially point of aim results @ 50 yds. and OK groups, the best 5 [shots] could be covered by a quarter. 100 yds. was out of the question given the amount of snow & ice on the range + the 6"-9" of new stuff Mother Nature gave us Weds. evening. Btw, said bullet groups very well @ 100 yds. with 16gr. -17gr. WC 820, but the point of impact is several inches higher. ...Maven