2800 fps with 140gr is motering right along. I found H414 pushed 140gr SST about 2750 just under max but accuracy wasn't the greatest. Mine seems to like H4831SC but it is in the high 2600's. Looks like I should be trying RL26!
I really like the 6.5 Creedmoor. This Tikka 260 is pretty good, it's what the 260 should of been in 1997. 8 twist barrel, 2.95" magazine box for the long heavy bullets
The 6.5 Creedmoor isn't smoke and mirrors. It's the 260 done right for today's bullet selection and it's well supported by every gun maker and lots of terrific ammo options for factory ammo shooters. It will come within 30 fps of the 260 Rem when loaded apples to apples
no benefit ballistically, but you'd be able to find ammo & rifles at least. Not much 260 out there these days
Lapua brass and F210M, seated .050" off the lands @ 2.95" OAL.
Does the original 260 magazine allow for that OAL or do you use a 30-06 type mag?
Original mag only goes to 2.81"ish, so I ditched it for the M+ magazines that come in the dreaded 6.5 Creedmoor rifles.
30-06 length mag would work (3.34") but I'd have to replace the bolt stop with the long action version. The 2.95" M+ is plenty long for the 260