Swampy's listed BC for the 7mm 180g bullet does not jive with Bryan Litz's testing. He found that bullet's BC to be 0.645 G1 and 0.330 G7.
Although his 6.5mm 140g BC is listed at 0.630 and Bryan found them to be 0.639.
I was surprised that one could be so close and one so far off.
Does the listed BC for your .308 bullets seem to jive with your come ups?
Also, you just might have to load up your .308 with RL17 and those 230g bullets and live with the recoil if the BC is greater than 0.7.
