I guess I should clarify. It doesn't matter the caliber used if you have poor shot placement. But with proper shot placement AND a good bullet in the 120-140 gr range that range will NOT pose a problem for that round. And no you don't need to brain shot them. I have had better result with my 6.5 vs my 30-06. I feel it it's a much more efficient round that simply puts the animal down. I researched changing out mine for elk hunting and everything coming back to if you have the confidence to put a good bullet where it needs to go then that round is more than effective enough for the job.
Your 6.5? 260.. or some other case? I'm guessing your 6.5 rounds had better sectional density or higher velocity at impact, I'm not sure how that would play into the equation...but again i aint so britelightbulb More details provided may explain why you feel you had better performance over your 06.
My .30-06 AI pushing a Berger 185 VLD at nearly 3K seems to hit pretty hard... Also, the ballistics are pretty solid, too. Hopefully this year I can drop a few whitetail with it to test that theory...
You should get out there and test one of your rifles on an elk someday. I'm think any of them would work very very well. And it would be fun to read the thread where Mud kills an elk. So hope you have it in your future plans.
6.5x55. I went to the round after studying BC and sectional density and several other factors.. But the original question was is a 260 adequate for elk, yes more than sufficient. They are big animals but a 6.5 bullet is different, it's hard to understand how efficient and effective it is until you have used one.
I will disagree with Steve about the .243 having killed more elk than any other in the last 100 yrs. I believe that is incorrect. I have elk hunted 46 years. Elk camp has had from 2 to almost 20 people. I know of one,person that used a .243. The last 5 years there has never been less than 12 people there for opening day. Not 1 has had a .243. Broz helped over 30 people this year take elk on depredation hunts. Ask him what he prefers for elk. Then ask how many people brought a .243.
I have great respect for the .243. I used my sons in Africa when he borrowed my 7mm for a day of Kudu hunting. 1 shot and done on my Nyala. I watched him kill 2 Lechwe in 1 shot a couple,of days later. It can and will do the job.
In all of the elk camps,I have been a part of elk rifles start at .270. The 30-06 has historically been a favorite along with the 7mm mag and .270' s. 15 years ago the claim was more North American big game animals had been killed wth a 30-06 than any other caliber. The last 20 years that statement is probably not true. In the last 100 it probably still holds true.
Back to the OP. 6.5's have great sectional density and a huge selection of bullets. They will do basically almost anything the .270 will. I have killed a lot of elk with the .270. Just use some common sense on shot placement and enjoy your elk steak! Bruce