Thread: Help with Horizontal Stringing

Looking for help…

Bought a LH Sako Carbonlite a few years back with intentions of using it on Stewart Island, but found it was too nice for bash-crash through the bush. Decided to repurpose it as a LW medium range rifle and so I rebarelled it with a 24” trueflight barrel in 7mm08 which I bought second hand here. Have tried 2 powders (RL17 and 2208) and 6 projectiles (154g SST, 150g Gamekings, 150g Ballistic Tips, 145g Speer Hot-Cor, 140g Gamekings and 120g Ballistic Tips). All shoot groups that are good vertically (1/2-3/4”) but rubbish horizontally (1.5”-2.5”). Have tried playing around with seating depth and powder charge but nothing seems to change. Have tried 2 different scopes.

I found I had to screw the sizing die further into the press than I am used to to get easy chambering, not sure if this is relevant or not.

Not sure whether to try a third powder, or to get the rifle bedded.

Any ideas?