I have a savage 10 in .204
bought a used .308 barrel (app 200-300 rounds on it)
changed the bolthead to .308 ( the one that was in my 7mm08, bought PTG for it)
using forester guages to check headspace, all is good, I know my problem is in my ammo. My hand loads. Just not sure where.

go gauge = bolt close
nogo =no bolt close
sammi factory round = bolt close
my handloads = no bolt close
handloads are seated at 2.800

LC brass FL sized
trimmed to 2.005
No crimp
lee dies

i know I'm missing something just can't think of why it is, built a 7mm08 with no issues.