JJ, is there any way you could pop a few 300's out of that thing. it would be a great experiment. the reason i say that, is because i know of a couple of 1k shooters that are using a 11.5 twist with very good results. of course we don't know exactly what the twist is but we'll assume 12. please shoot some 300's out of that thing as an experiment to see if they'll stabilize. they just might!