Bore size to die size

[okie2]

shooting 168 amax's
MODEL 11 SAVAGE 300WSM

loaded new brass
case neck .336
shoulder .531
base .549
length 2.093

new case fired first time
case neck .344 went +.008
shoulder .539 went +.008
base .554 went +.005
length 2.100 went +.007
primer is fine no signs of high pressure

RESIZED CASE HORNADY DIE
NECK .334 WENT - .010
SHOULDER .5315 WENT -.0075
BASE .551 WENT -.003
LENGTH 2.106 WENT +.006

RESIZED CASE RCBS DIE
NECK .335
SHOULDER .532
BASE .552
LENGTH 2.103

I think I need to get a custom die made or just neck size them
both of these dies are working the brass to much.
Have any of you had this problem with your 300wsm.

[hailstone]

Appears too be normal expansion of a fired case in average hunting rifle. If you want less expansion then you need to change barrels to a bench rest tight chamber barrel. That will present you with other problems. Have you researched what the specs should be for normal case expansion upon firing?

[okie2]

I THINK THE BEST THING FOR ME TO DO IS SEND LEE 3 FIRED CASES AND HAVE SOME CUSTOM DIES MADE.
THIS WILL STOP ALL THE WORKING OF BRASS SO MUCH.