I remember quite a few years back when I put together my first 6.5CM on a Savage 110 action, I started testing with RL26 and found out the CM was capable of reaching 3000fps with 143ELDX Bullets out of my 26" barrel. My 24" Savage was shooting 2950fps with same bullet.
I got a lot of crap from all the 6.5-284 guys claiming that I was full of it, my chrono must be faulty or I was shooting way over pressure. After enough time and enough other people using RL26 were getting the same results the guys using 6.5-284 started using RL26 and were now 100fps faster with their rifles than the CM, all was good with them after that.
I have a Sako S20 6.5CM and Tikka T3X 6.5CM and both have 24" barrels. Both rifles shoot 143ELDX bullets at 2920-2950fps and just like my other previous CM give between .500" and .750" 5 shot groups at 100 yards. My load with the RL26 is hot but I have gotten over 12 loadings with same brass.
My Deer rifle before the 6.5CM has been 30-06 Sako L61R 24" barrel, I have 2 of them both shoot Nosler 165gr Ballistic Tips at 3100fps using H205 powder and Lapua brass, Sub Moa at 100 yards. Hunting here in the woods I found I really didn't need to use the 30-06 for hunting deer or bear and the 6.5CM was more than what was needed. I even have a 6.5 Grendel that I use. ( if I am doing much walking I will bring my scoped Ruger SRH 44 Mag with 13.25" barrel in a Bandolier Holster hangs on the front of me )
I now have 5 - 6.5CM rifles as I sold the 110BA Stealth and pulled the barrel of the LA savage rifle its now a 30-06 I gave to of my sons, I also gave a Savage Lady Hunter 6.5CM to one of my daughters.
In all I have had 8 - 6.5CM and 2 - 6.5 Grendels, yes I have a sickness but no manbun , I do however have a beard, a Tundra and I believe I have a nice Moob Rack going on. (some of the 6.5s have Vortex Scopes)
There that feels good to get that of my chest.