Has anyone ever used shilens "ratchet" grooved rifling? I am considering their drop in select match grade barrel in 338 Lapua 1:9 twist with the 4 groove ratchet rifling for my savage 338 Lapua. What are the benefits of the ratchet style rifling vs normal rifling? I will have to go 1:10 twist if i go with the normal stlye but i want to go 1:9 twist because ill bet you right when i get the new barrel installed an ultra high BC bullet will come out that needs a 1:9 twist to stabalize . If you have used there ratchet rifling chime in and let me know what you think of them.
I'm 18 "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." ~George Washington
"The only advantage a light rifle has is weight, all other advantages go to the heavy rifle."
~ JE Custom
If I recall correctly. Isn't ratchet rifling Shilen's spin on 5r rifling?
"I, however, view ethics as an individual decision. My ethics are mine - and I won't explain or justify them to anyone else. I seek nobody's approval, just that of my own conscience. "