6.5-08 AI aka 260 rem on roids

[Jim’s Hunt]

Has anyone out there have a 260AI? And if anyone does or has did you like it or not and what were your ballistics like. I thinking about building a spotter in it

 

[dogz]

with similar pressures add 50-75 fps over the 260 and you're there

 

[Jim’s Hunt]

with similar pressures add 50-75 fps over the 260 and you're there

So more potent than a Creedmoor and getting close to a 6.5 x 284

 

[dogz]

to me the CM and the 260 are pretty much same old same old with similar pressures so no not getting close to the 6.5/284 which is pretty much the same as the 6.5/06

 

[Jim’s Hunt]

to me the CM and the 260 are pretty much same old same old with similar pressures so no not getting close to the 6.5/284 which is pretty much the same as the 6.5/06

I agree on the 260/6 Creedmoor being the same but I thought the AI would put it over the top a little more than 75fps

 

[LongBomber]

My 260ai is pretty much right there with a 6.5-284. With some bullet/powder combo's it will exceed it. Prob see about as much difference in individual barrels, and with load preference from each barrel.
A 140 can be driven over 3k but mine likes the 2850-2875 range with most 140 class bullets. It likes a 129lrab at 3045, which is plenty fast, or the 144 Berger - RL26 combo at 2960.
I can easily go over 100fps difference from the 260 I had or the 6.5cm's I have, some of that is likely running the very straight walled cases, and the tough brass helping hide pressures. But I am somewhere around 12 reloads on one batch of brass and haven't lost a case yet, so the pressure is not through the roof.

 

[twister]

my 260AI is just behind my 6.5-284. I have it built on a medium action and its throated long. I haven't used anything besides 4350 for powder though so i think i could get a lot more out of it but it shoots very well.

 

[Hespco]

Savage mod 16 stainless , as it came from the factory. 22" 1/8 twist bbl. CCI #250 mag primer. 47.5grs Rel 26. Badlands Precision 125gr Bulldozer copper mono ( BC .510 ) . 3032fps. Very reasonable recoil, flat shooting , good case life & will take elk cleanly. Even if you gained 100 fps second with the 260 AI, it means little. Maybe 1/3" flatter at 300yds. The 260 Rem as is, is a great performer. Nosler 6.5 140gr AB ( BC .509 ) on the left, Badlands Bulldozer 6.5 125gr on the right ( BC .510 ) . Super accurate . This load is absolutely safe in my rifle. If used in a different rifle the load should be worked up from well below my safe max.

 

[Idaho Lefty]

Might want to look at, the 6.5 SLR or, the 6.5X55 GWI, BOTH, are very accurate and, a bit "easier" on Bbl's than, the 6.5- 284 or, 6.5 WSM, etc. ! My 1st Choice would be, the 6.5 X 55 GWI (30* shoulder ) and easy to make from, GREAT,.. Lapua Brass !
Both Cartridge's will hit, the sweet spot of, 2,900 - 3,100 easily with, High BC, 140's and with, probably, DOUBLE, the Barrel Life of, my current Rifle. IF, I wanted to build, another Rifle, to replace my .270 WSM, these Two, would be, Top Candidates !

 

[lancetkenyon]

I am building a 24" 1:7.5" .260AI as we speak.
My daughters shoot a 6.5CM and a 6.5SLR respectively. The 6.5SLR will outpace the 6.5CM with like for like powders and bullets by about 75-100fps due to slightly increased case capacity. I had a .260Rem for years. Matched my 6.5SLR step for step with powder choice, charge weight, and bullet.

I am hoping to gain 100fps+/- over a standard .260 Rem with the .260AI. I have seen 100-150fps gains with every other AI over a standard parent case SAAMI rifle. I have owned or shot several of the standard SAAMI parent cased rifles and the AI counterparts.

Alpha .260 Rem SRP brass (to FF)
BR-4, Fed GM205M, and CCI 450
H4350
140 Hyb

6.5CM vs .260 Rem vs 6.5SLR vs .260AI

 

[xsn10s]

I'm really interested to see what velocities you get with the 24" 260 AI lancetkenyon.

 

[Wedgy]

I think Cody Adams runs the Berger 156 grain around 2,950 fps with his 260 AI with reloder 26. He could run faster but accuracy was a bit lower than max velocity

 

[Idaho Lefty]

Look at, the Beautiful,.. LONG,. Neck on that, 6.5 SLR !

 

[xsn10s]

I think Cody Adams runs the Berger 156 grain around 2,950 fps with his 260 AI with reloder 26. He could run faster but accuracy was a bit lower than max velocity

I believe he has a 29" barrel on his 260 AI. That's why I'm interested to see how Lance's rig works. I have a 25.5" barrel waiting to be installed.