Just out of curiosity; who's we, where do you hunt, what do hunt with, and what kind of teaching do you do? I'm not sure what you're getting at with this "one shot one kill" stuff which sounds to me more like some hard core military jargon from the movies rather than realistic hunting discussion. BTW, I've taken some animals with one shot, but I don't realistically expect that to happen every time because of a multitude of variables that can happen. Of course that's the ideal scenario, but what really is your point? I've been saying all along that placement is the most important factor, and that I also prefer the more typical .30 cal deer cartridges, but to each their own. If someone wants to use a .223, more power to them because it might work for them. I usually use a 30.06, 12 gauge w/rifled slugs, occasionally buckshot, and even .357 (both handgun or lever carbine) depending on my mood and situation. I guess I'm just not as good as you because sometimes I actually have to shoot more than once to kill my animals. Sounds a little far fetched to me that someone "ALWAYS" takes em down with just one. I guess that there's no need for any kind of a repeating rifle or other firearm designed for additional shots in your case. In all seriousness I don't feel that I'm that good that I'd use a Thompson Center Arms rifle, and I've stayed away from muzzle loaders for that reason, but they are apparently sufficient for many, but after all is said and done, I still prefer to have the capability of taking additional shots if needed. JMO! Just a little past history of my activity: early Dec 09 dropped a 4 point buck on opening day with a 12 gauge rifled slug in thick heavy brush at 75 yards, didn't get up but required a couple of humane follow up shots. later in December 09, dropped a good sized Russian boar 22 yards with one shot with a .357 revolver didn't get up but also required some follow up shots to totally put out his lights. Previous year: 2 boar and one deer (just a doe) with four shots. The doe went down and stayed down on the first but was still moving on the ground until the second shot. Year before that: a whole bunch of shots with all kinds of guns to take 3 boar among 3 hunters. Point is there's a lot of variables, and it's not always the same. Lets hear about your one shot one kill record. I'm so curious.