I was shooting at BW range the other day, and I noticed the gorgeous wood on a rifle a few benches down from me. I complimented the owner on the rifle stock, and he said he had built it himself. The fit and finish, and the hand checkering was truly superb! The rifle was a Ruger model 77 in 6mm Remington, with the varmint weight barrel, and the barreled action looked as good as new.
He mentioned that he was disappointed in the load that he tried that day, which was a Sierra 107 gr. hollow point boat tail match, and showed me a 100 yard target with two perfect silhouettes of that bullet. I am guessing that the rifle was the 1:12" twist that was originally supplied with all the early factory 6mm Remington cartridge rifles. That relatively slow twist was the cause of the cartridge's loss of favor compared with the .243 Winchester, which came with 1:10" twist, because the slower twist wouldn't stabilize the 100 grain 6mm hunting bullets of the day (much less the very long 107 grain Match).
I took a picture of the group, because it was the best example I ever saw of an unstable bulllet result.