I have a new 6 PPC coming and am wondering about optimal bullet choices. It has a Krieger 13.5"-twist barrel and a Dakota Varminter action (modified Nesika Bay, I think). It's not a BR rifle, and I plan to shoot lightweight bullets in it.
I've gone to the JBM stability calculator to see what weight 6 mm. bullets will stabilize in the 13.5 twist barrel and, according to that calculator, most of the 68-70 grain bullets that I'd hoped to be able to use will be under-stabilized. These bullets run .80"-.83" in length, and with the velocity set at 3000 fps, I'm getting stability values below the 1.30 recommended with the calculator. So, I'm looking for advice here. With the results I'm getting from the online stability calculator, will I in fact experience under-stabilization with these bullets? What other bullets would you suggest? I have some 68-gr. Barts and Watsons on hand.
Any and all advice will be greatly appreciated.
I've gone to the JBM stability calculator to see what weight 6 mm. bullets will stabilize in the 13.5 twist barrel and, according to that calculator, most of the 68-70 grain bullets that I'd hoped to be able to use will be under-stabilized. These bullets run .80"-.83" in length, and with the velocity set at 3000 fps, I'm getting stability values below the 1.30 recommended with the calculator. So, I'm looking for advice here. With the results I'm getting from the online stability calculator, will I in fact experience under-stabilization with these bullets? What other bullets would you suggest? I have some 68-gr. Barts and Watsons on hand.
Any and all advice will be greatly appreciated.