Deflave: The 243 with a 1 in 8" really seems to me to be on he extreme end of the shooting community wishes but as I said we are looking at all twists. I do not have personal experience with a 243 so can't offer real life fact based opinion. Do you have experience with that twist rate and shooting bullets at the extreme light and heavy ends of the spectrum? If so how did they shoot?
Reed, lightweight projectiles are not adversely affected by a faster twist. The adversity is for heavy/long projectiles trying to stabilize via a slow twist. Twisting fast will sell you more rifles, simple as that. Buy a few custom tubes and do a test for yourself. This sort of testing should be pretty cheap when you consider the potential benefit. Research is fun!
