I'm in final stages of putting togeter a 338-06, and am working on loading specs. For best accuracy I have measured the jam length, where bullet contacts the lands, and it is 3.51". Recommended LOA for reloading the 225gr Hornady is in the 3.25-3.30" range. By moving just off the lands and working back, there appears to be a major difference between what I will end up with vs the manual recommendations. These are long bullets so there will still be plenty of length in the case, and the jam length feeds fine from the magazine. Any experience or advise regarding this difference?