Berger .308" bullets, 210 gr. A bullet with a longer bearing surface will produce more pressure when bullets are of the same weight and construction.. A thicker copper jacket will produce more pressure. A solid copper bullet will raise pressure. When load data is using a standard lead core jacketed bullet and you change to a different construction type bullet, of the same weight, pressure may go up. http://benchrest.com/showthread.php?87852-Blowing-out-primer-at-below-recommended-start-load-300WM/page3 "the VLD bullet has a bearing surface length of .540”. The LRBTHP bullet has a bearing surface length of .438”, making it shorter, with less resistance to overcome than the VLD design has to work with. This would mean that due to the higher resistance, of the VLD design, you would not be able to use as much powder, and you would get into pressure issues faster with the VLD, as compared to the LRBTHP."