Originally Posted by Gunpoor
I could get 2975 ft/sec from my 22" 243Win with 100 grain Rem Corlokt bullet over 40 grains of IMR 4350, and with all other things being equal I think a 6mmRem will run faster because of more case capacity. My Remington model 600 in 6mmRem only has an 18" tube and that kind of limits the muzzle velocity, and I don't know if I have ran it over a chronograph. I think if longer shots are going to be the norm on medium/large game animals that a larger bullet diameter would be better. The guy on the TV show, Predator Quest, was shooting a 204 Ruger while coyote hunting and couldn't get a dog to come in closer than 400 yds., so he brought out his 300Wby and reached out and touched him. Is a 300 magnum necessary to shoot that far? No, but it got the job done.
If memory serves me right, I've tagged about six or eight coyotes past 500 yards with the 6mm, but used 87 grain bullets and Berger 88's. The longest was in the 650 yard area. Later I learned to call them in much closer. At 3300fps muzzle velocity the bullet will have almost 900 ft. lb. of energy, and drop about 33.5 inches with a 200 yard zero at 500 yards. That's about 1.1" high at 100 yards. I've played with a + 5" zero point, and even a +6" zero point, and they were more trouble than they were worth. Plus I don't estimate yardages as well as I did when I was younger. So I kinda like the 400 to 500 yard cut off points. A 30lb. coyote is not exactly a big animal, and when your looking at 400 to 500 yards it's really hard for me to judge the hold over anymore. With a 200 yard zero it's pretty much point blank out to 300 yards. A 300 yard zero would be much better out to 400 yards, but once again the hold over becomes the issue at 500 yards. I know I've done it several times, but now days it's insane. Plus my favorite bullet is 80 grains, and I limit it to 300 yards n the 6mm. My 6/250 will do 3000fps with a 105 grain Amax or the 107 Sierra, and that's a different ball game.