I know there are a few knowledgeable 260 users on here so grateful for any advice (21" barrel on Sako 75).
Just had a rifle re-barrelled in 260 and worked up a first load (as per http://www.thestalkingdirectory.co.u...60-load-for-me ) with H414 as I had some in the cupboard and results weren't that impressive. I seemed to get by far the best accuracy at min load of 42.5 grain, but 3 shot group was still c. 1". Velocities were very consistent (+/-3fps across 3 shots) so quite happy that my reloading is at least consistent, but at 42.5gn the velocities were <2,600fps. There were no pressure signs as the loads increased the groups opened out to around the 2" mark.
Looking across a load of forums (mainly US based) H4350 seems to be the powder of choice for 260's, but ringing around this morning it sounds like there is no way I'm going to find a reliable supply in the UK!
The other powder that seems to be recommended by a few is R17, which seems easier to get hold of, but anything else 260 users have had success with? I'd heard that velocities of 2,800 - 2,900 fps are easily achievable with the right powder, so slightly disappointed with 2,600fps, although clearly this is more than enough to knock deer over.
Thoughts / advice / suggestions very gratefully received!