Being and ethical hunter and wanting to stay within a weapon's (or caliber's) capability to make a clean one shot kill, what things do you consider for terminal performance? The hunting mags preach 1000 ft/lbs for deer size game and 1500 ft/lbs for elk. I know foot pounds aren't everything but I see the "Gunwerks" guys on TV killing elk cleanly at nearly 1000 yds with a 7 Rem Mag and berger's 168 gr. It seems to be their favorite caliber/bullet combo. Being a numbers guy, a ballistic calculator tells me that combo is down near that 1000 ft/lbs number (and below 1800 ft/sec velocity) at that range and 1500 ft/lbs is back at 700 yds. I havent shot the berger bullets yet but are they that lethal on large tough big game like bull elk? I have shot a couple elk but they were jump shot at close range with a 300 WM and controlled expansion bullets and they both required follow up shots. The bergers and most other bullets are supposed to expand reliably down to 1800 fps but there is not a lot of energy left at that point. I have tremendous respect for the tenacity for life that bull elk possess. So what limitations do you put on your equipment. I'm not foolish enough to try and kill an animal at long range just because I can hit it, I want to know that my weapon of choice has the power to make the clean kill. What do you recommend for long range elk and what limits do you put on calibers,bullets types, and weights for different sized game? Deer? Elk? Thanks for any recommendations?