Originally Posted by med7mmstw
I have a 338 Lapua mag great groups but hornady factory ammo sticks had chamber polished by savage hornady still sticks lapua brass doesnt.
Try spraying the unfired rounds with Hornady One-Shot prior to chambering.
If you search around here (on forum) you'll find some interesting comments about Joyce Hornady .338 Lapua factory loads and brass.
Aside from the suspect .338 caliber, I like Hornady components, brass, projectiles and load data. I guess you can't be good with everything.