Thread: Another 260 Improved

Done a bit more shooting over the weekend after getting the throat of the 260Imp lengthened by about 4.5mm to make use of the Tikka long action etc.
Found that I needed another 0.5gr RL17 to reach the same velocities I had with the short throat. Nice to seat the 143gr ELD-X level with the base of the neck. Being a typical velocity hound, I wound it up to see what I could ring out of the 24.5" barrel and achieved a highest reading of 3025fps, though the average of the 5 shots was 3009fps. Pressure was way too high to use this as a go to load, the cases were getting slammed big time. Accuracy was excellent even at that speed with the 5 shots grouping around 1/2 moa. I will go back a grain (2940fps) and work around that. I think that will be a lot safer for the summer temps coming up.

Here's a pix of the group. Patched holes are just me dicking with scope after the group to get the right zero.



Bugger, the pix has loaded flopped on its side