I just reloaded my first loads for my lapua. the only bushing I had was a 364 and 365. lapua brass measured .015 plus 338 equals 368 I thought 366 would be perfect but was 2 inpatient to wait for the bushing. Anyway loaded 300 grain sierras withthe 365. Handle pressure felt a little tight on seating. Then again I had just got finished doing 7mm saums as well. Long story short question what neck tension do you use for the 338 lapua? What bushing size