Thread: 8.6x47 Lapua

1-3"?? I find that hard to believe.
The 1-8" or 1-9" twist in the .338 will stabilize the heaviest and longest .300 grain projectiles at sub speeds. My .338 Whisper (the same cartridge that Hornady are trying to claim as their new 8.6 Creedmoor) was a trueflite 1-9" and shot very well even at 1000y. Velocity retention is amazing. Lucas used 1-8" .338 Shilen barrels for the original .338 whisper builds in NZ.
I like the sounds of this one of Gregs built on the tougher and slightly longer 6.5x47lap brass though, Id say it will have much better usable supersonic velocities and unlike the .338 Federal could be loaded long in a short action with a variety of sub and super projectiles