Ben-Why Ackley the 6.5x47? You got me figured with the tinkerer label, but there are other reasons. First, I think the standard cartridge is a little small for 1000 yards. Yes, the bullet will get there, but if it gets there a little faster, you have less wind drift. Second, I think the 40 degree shoulder is more efficient, it promotes more of the combustion in the case as opposed to the barrel, so accuracy is higher with reduced turbulence on exiting the muzzle. Third, using the smallest possible case to send a high B.C. bullet that far results in less recoil, which aids shooter accuracy. Look how well the Dasher guys are doing at 600 yards. The other cartridges you mentioned are fine, but less of a challenge and have drawbcks. In the Seventies I use to race motorcycles in the desert. The 400cc bikes were faster but less efficient. I raced a 250cc (Husqvarna) because I always had to go wide-open to do well, while the open class bike riders were backing off to keep from getting over their heads. Personally, I did better. With the 6.5x47 A.I. at 1000yds, I have to try harder, pay more attention to my reloading, do more case prep, do more of everything to try to beat the bigger cartridges. I understand this doesn't appeal to everyone, but works for me. Besides, the sucker just looks good.
