To those of you who are interested, TTI Armory is making their own 408 ammo, the bullets are solid copper and have some awesome BC's Here are some pictures. From right to left 419 Gain projectile BC = 0.93 400 Grain Projectile BC = 0.89 300 grain SMK (for size comparisons) from left to right 308 win, 338, Lapua, 408 cheytac(400 Grain), 408 cheytac(419 grain). The 408 is a impressively large cartridge. As you can see it even dwarfs the mighty 338 Lapua Mag. These new rounds are currently being tested by the military and the feedback TTI is getting is that these are the best 408 rounds available and solve the accuracy problems and copper fouling problems that existed with the other available projectiles. They are running the 419 grain bullets at 2800 fps and the 400's are in the high 2800's, Ryan at TTI said that you can push them faster without a problem. I have not shot these yet, but I will soon be receiving my PGW Twolf 408 cheytac and when it gets here I will get a chance to try them. I have these bullets readily available if anyone would like to order any.