Lots of great opinions posted in this thread lately. I would like to clarify something from my previous post. In addition to having a career in the natural sciences, I am also a farmer. On our farm, we raise crops and livestock, namely heritage breeds of waterfowl (>100 ducks and geese). I use a 22" barreled 6.5x55 for protection of the farm from everything ranging in size from woodland rats to coyotes. So far, I have not had to actually take a shot at a black bear, but we get them here in the 500 - 600-lb. size range; while I would not hesitate to use this rifle for that purpose, I would prefer to do it with my .284 Win.
I also use the 22" Swede from time to time for local whitetails, which are in the 125 - 160-lb. class. Even in the worst of weather conditions on our farm, I am looking at 1000 ft-lb. at ~640-yds. with a 58K psi load behind an LRX 127. That would be a hunting load. For a defense load from the rats and predators, I either load subsonic 100-grain or full-power 120 TSX. I would use this rifle, with the 22" barrel, for any deer out to maybe 500-yds with the LRX and feel completely confident in the ability to cleanly and ethically drop the animal on the spot, assuming proper shot placement. I would not add much more range if using the 24" barreled version. The difference in MV is generally 40 fps between the two, give or take. It could be done for elk out to ~600 (my elk hunting is done at an altitude of ~950 - 1050' ASL), however were I going to go hunting for elk, specifically, expecting it to be impossible to get close, then I would grab the .284 Win. (since I own it already) with either the 145 LRX or 175 TSX and feel greater confidence that at the same distance there will be significantly greater energy delivered, improving the chances that a 'DRT' is the result. I agree with the post alluding to getting in close and actually hunting; it takes a lot of this discussion comparing one cartridge to another out of play. Bottom line is that I'd feel fine going for that same elk with the 127 LRX if I could hit it with 1,500 ft-lbs. That's a lot closer than 600 yds. with even my "hot" Swede and the 24" bbl.
I also use the 22" Swede from time to time for local whitetails, which are in the 125 - 160-lb. class. Even in the worst of weather conditions on our farm, I am looking at 1000 ft-lb. at ~640-yds. with a 58K psi load behind an LRX 127. That would be a hunting load. For a defense load from the rats and predators, I either load subsonic 100-grain or full-power 120 TSX. I would use this rifle, with the 22" barrel, for any deer out to maybe 500-yds with the LRX and feel completely confident in the ability to cleanly and ethically drop the animal on the spot, assuming proper shot placement. I would not add much more range if using the 24" barreled version. The difference in MV is generally 40 fps between the two, give or take. It could be done for elk out to ~600 (my elk hunting is done at an altitude of ~950 - 1050' ASL), however were I going to go hunting for elk, specifically, expecting it to be impossible to get close, then I would grab the .284 Win. (since I own it already) with either the 145 LRX or 175 TSX and feel greater confidence that at the same distance there will be significantly greater energy delivered, improving the chances that a 'DRT' is the result. I agree with the post alluding to getting in close and actually hunting; it takes a lot of this discussion comparing one cartridge to another out of play. Bottom line is that I'd feel fine going for that same elk with the 127 LRX if I could hit it with 1,500 ft-lbs. That's a lot closer than 600 yds. with even my "hot" Swede and the 24" bbl.