I'm just getting set up to reload 178gr A Max 308's. When I seated the bullet in the brass with the bolt of the Savage Edge it took the OAL to 2.890. I put it in the press and took it down to 2.887. I then painted it with a Sharpe and put it back in the gun to see if it hit anywhere, it did not. So, if I back it off ten thousandths more it will be. 2.877.
That is more than the maximum OAL length for a 308 and the Lyman reloading manual I just bought said it's test cartridge with 178gr A Max OAL was 2.78.

So where do I start?