ORIGINAL: jeepkid
I'm on my third reloading with Lapua brass with no trimming yet. Some are starting to get a hard bolt closure though...
Jeepkid, Set your die to bump the shoulder a little more. The tight bolt close is not because of the overall cartridge length. If your die is set to bump the shoulder back .001 to .002 you'll see the bolt closing a lot easier. If you don't have a headspace guage just bump the shoulder a little more each time and try to chamber it until it closes nice.