Can you caliper her factory Barnes ammo for overall length? That might give me some idea how deep I should be seating 30-06. Thanks.
She shoots .308 Win which is shorter than .30-06. Her rifle has a tight chamber and is throated so there is only 0.010” of jump to the lands if that helps.
Using Barnes recommended COAL 3.240” should produce a very workable load.
Here is Barnes load data for .30-06:
I use their recommended COAL in a new rifle if I am in a hurry or want to use one load across multiple rifles. I have one single load that works in at least six different .308 Win rifles and is accurate and safe in all of them. If I am going for best possible precision, I load them 0.010” off the lands.
Barnes bullets use tangent ogives, so they are much less sensitive to jump distances than bullets with secant ogives. Their recommended starting point is 0.050” of jump. I have jumped them 0.100” with great results, they really are not picky.
One strong recommendation. Thoroughly clean the barrel before starting to use them for best accuracy. Barnes Copper Solvent is the strongest solvent I have found.
For a slower solvent, Hoppe’s Benchrest solvent, not the old Hoppe’s No. 9, is effective and can be left in to soak for hours or even overnight to soften built up carbon plus copper.
Ask questions if you need help, I have been using the Barnes since 2011, so fifteen years and a lot of animals at this point. The TTSX is my go to bullet.