I`ve had experience with both those bullets in the .308. What are trying to do? target work? At what range?.
Because of the BC of each bullet, you will need to lean hard on the AMax to remain supersonic at 1k. Not so much with the Lapua. Both bullets are very accurate, with an edge going to the Amax, believe it or not, out of my rifle.
Cost is a factor, so if shots are within 900 yrds, the Amax can do that without undue stress on the rifle and components, IME.

PS, try 4320..

Last edited by CGPAUL; 11/22/11.