Here is an average of 21 published Maximum velocities for 6.5 Creedmoor and 260 Remington. Nosler data and Hodgdon data. Most of these published loads for 260 were 24" barrels with 1-9 twist while 6.5 twist was listed at 1-8.
6.5 Creedmoor 130-135 gr bullets: 2819 fps.
260 Remington 129-130 gr. 2815 fps.
What I was curious about were how these two compared and evidently it is a toss up as far as muzzle speed.
Interesting to note: the 6.5 speeds from Hodgdon listed for 130 gr. are strangely low, even lower than their 135 gr. listings which are more comparable to normal 130 gr. speeds. Except for 6.5 Sta-ball which was faster.
Dropping from 24" to common 22" barrels will probably reduce these speeds around 60 fps on average.
If you have any real world muzzle speeds to share for either or both of these rounds please share along with your barrel length.
6.5 Creedmoor 130-135 gr bullets: 2819 fps.
260 Remington 129-130 gr. 2815 fps.
What I was curious about were how these two compared and evidently it is a toss up as far as muzzle speed.
Interesting to note: the 6.5 speeds from Hodgdon listed for 130 gr. are strangely low, even lower than their 135 gr. listings which are more comparable to normal 130 gr. speeds. Except for 6.5 Sta-ball which was faster.
Dropping from 24" to common 22" barrels will probably reduce these speeds around 60 fps on average.
If you have any real world muzzle speeds to share for either or both of these rounds please share along with your barrel length.