Yep, never got factory Lapua ammo for the 6.5x47 Lapua.
I had to dig a bit, but here's what I have:
Reamer: Manson Precision Reamers 6.5x47 Lapua CIP Standard, .163 freebore.
Chamber was tight, even after firing a round I could stick a bullet in the neck and it would not fall through
Load data
Cartridge | 6.5x47 Lapua |
Case | Lapua 6.5x47 Lapua (Small Rifle Primers) |
Bullet | Lapua Scenar 123gr |
Primer | Sellier & Bellot Small Rifle Magnum |
Powder | Reload Swiss RS60 (In the US it's Alliant Reloder 17 I believe) |
Charge | 40,80gr |
COAL | 69,30mm / 2,728" (approx) |
CBTO | 55,50mm / 2,185" (approx) |
MagnetoSpeed V3 data
Shots | 10 |
Min | 917 m/s (3008 fps) |
Max | 925 m/s (3034 fps) |
Avg | 920 m/s (3.018 fps) |
SD | 2.6 m/s (8 fps) |
ES | 8 m/s (26 fps) |
This load is definitely not the best, it was a bit hot too

But it got me solid hits on the 1250 meter target in Denmark (~1367 yards).
If you want to know anything else, just ask. Happy to help and I'm leaning on others for their mounting solution for the Tangent Theta too so we're all one happy messed up family
From what I heard, US

powders such as Hodgdon H4350 and Varget are the way to go.
Also, for primers the CCI 450 is great and for bullets the Berger Hybrid AR Tactical 130gr is pure gold!
Reference links:
6.5×47 Lapua Cartridge Guide within AccurateShooter.com
6.5x47 Lapua Load Data - What The Pros Use - PrecisionRifleBlog.com
Good shooting!