Good points, but from my perspective, the new 6.8mm fills a real gap in dual-p8urpose hunting cartridges as well. (Just my opinions)
On varmints, the .243 is great. On deer, the .243 is adequate, but unforgiving for small errors. Its performance on deer, particularly larger deer, has often been described by gunwriters as erratic. That 100 grain bullet just doesnt have what it takes to reliably break a shoulder bone or other large bone areas and keep going through to the vitals. I know that you should always try for a lung shot with the .243, but most people are going to make a mistake and hit large bone at least 1 out of 5 times. I have seen it done at least this often by regular users, and I did it once myself. (I used a .243 as my primary deer rifle for 5 years.) Also, that small hole does not leave much of a blood trail.
So for those of us who like light, fast, hard hitting rounds, with minimum recoil and muzzle blast, there is a true need for something with just a bit more oomph than the .243, particularly if you do not hand load. And, as I have said before, the large majority of hunters do not hand load and do not want to hand load.
Right now, the only thing available in this area seems to be the .257 Roberts, or the .260 Reminton or the 25-06.
I have shot two rifles in .257 Roberts and could never get decent accuracy out of them using factory ammo. (Two to two and a half inch groups were the best they would do.) The majority of gun articles I have studied on this topic, and board postings, plainly state that in factory ammo, accuracy is a big problem with the .257 Roberts.
The .260 Remington seemed to have been a good solution to the issue, but then for some reason it started to fail as commercially viable cartridge. Browning droppped it from the A-Bolt line this year, and Remington (who invented it) only offers it in its BDL rifle. (Not even in ADL!) Best I can tell, almost nowone else is still making rifles for it. Most people responding to my posts on this subject agree that it is destined for oblivion, and there may not be factory ammo being made for it five years from now. So if you don't hand load, why buy one?
Of course, there is the good old 25-06, but this is a real big leap above the .243 in size, noise level, recoil, muzzle blast and power. It doesnt fit that nitch of being just enough but not too much, particularly in the varmint department. (Same for the .257 Weatherby.)
The .250 Savage is still around, in some towns, but it is basically dead. I may be wrong, but I don't think it has the power of the .243, and I don't think it comes in factory ammo in any heavier weight than a 100 grain bullet.
So, no we come to the new 6.8 mm Remington. It has the same foot pounds of power as the .243, but delivers it with a 115 grain bullet, that has a much better ballistic coefficient than the .243, and all in a factory load. So, you get a bullet that weighs 15% more, and has a greater frontal density, and a better bullet coefficient, than the .243. I believe that this will fill the nitch nicely, and can still be used on relatively small varmints. In short, it will be a better dual-purpose round than the .243 Winchester.
So, I believe that there is not only a "gap" in the current military/police cartridges, but also a "gap" in the current dual purpose rifle cartridges. The 6.8 Remington should fill them both very well.
Just my opinions. And I know, not everybody cares about recoil and rifle weight like I do. But, if the 6.8 takes off as a military/police round, I think it will become a big success with hunters as well.
Best Regards,
Big Paulie