If you practice quite a bit at 500 yards a simple duplex reticle and estimated holdover and wind hold will work fine on a deer pig elk size target. In general if you are zeroed at 200-250 the drop is about 6" , 16", 36", 60" at every 100 yard increment with modern rifle trajectories. It is certainly not precise enough for this section of the forum but with light winds and a good field rest and a very familiar rifle - meat in the freezer.
Nothing beats dialing for precision but my Z600 and Z800 reticles are spot on all the way out - with practice the 300 Weatherby with 180 Barnes TTSX is solid to 800 yards on steel and 600 on hair with a solid field rest in way less time than dialing. Naturally the more you practice the faster and more accurate you can be.
