we shot up a old school bus down in a pasture one day i guested the range about 6 or 7 hundred yards ,i was shooting a tc white mountain carbine,using homemade maxi balls i think they were about 325 or a little bigger with a 100 gr. of loose powder.We shot it a few times to see where the lead was landing there was water in the pasture so we could see the splash in the water i had to aim about 10 feet over the bus to hit it in the side under the windows,after a dozen or so shots and cleaning we put the hood around to the side ,we were hiting a spot about 3 feet in dia painted with black paint by aiming at the top of the buss,then i steped the range it was over a little over 600yards. I always wondered how thoes guys hit buffalo at extreme ranges just take a little time to learn how.