Granted inside of 150 yards the 20 Var Targ, 204 Ruger & 20ppc will likely achieve our task quite effectively. Stretch that out to 400 yards & could the same be said? Say we load all 3 up with the same bullet & use a upper end load. I'll choose a 39 gr Sierra BK for all three. What are the pros & cons with each cartridge. Measures to be used would be trajectory, effectiveness on varmints - prairie poodles too Coyote. Then I suppose we may do well to consider barrel life as well.
Choose another bullet if you see fit, just compare the same bullet in each cartridge.
Choose another bullet if you see fit, just compare the same bullet in each cartridge.