Apparently, 204 is a great caliber! Just like the rest, it has some limitations. After certain distance begins to lose power due to the light bullet it shoots. If you compare it to 223 with 50-55 gr. bullets, it's a close call, but you go up to 75-80 gr. in the 223, things change quite a bit, especially in the energy department, we are talking double after 500 yards, you should see what a 75-80 a-max do at impact at up to 800-1000 yards. Trajectory is a factor for sure, but we are within 1-2 moa tops, windagewise - the advantage goes to 223's heavies, if you can shoot, you can shoot, a flat shooting caliber won't win you a trophy, a skill will. Having the fortune to have both is the best, for pure ballistic, reloading, economical, practical, versatility argument sake, 223 with 75-80 gr. hands down.