I have something similar to what youre asking about. I just took an older model 11 in
.308 as a project and cut and crowned the barrel at 16". ( actually over time it went a lot further than that as i cant leave well enough alone.)
I'd definitely stick with .308 for such a project though primarily for ammo availability and versitility. Theres no difference in recoil between the two with like projectiles and no real ballistic advantage until you get way way out there. Much further than you plan to shoot.
Someone else may come along with additional information, advice, or suggestions.
Good luck
Bookmarks