I am pretty sure the twist is 1:14. I had thought about that limiting bullet selection. I have shot 52 grain with pretty good results. I can probably shoot 55's but 60 grainers may be a stretch. That is one thing that does make me pause a bit. Scenarshooter, thanks for the pics. Also am happy to see that 55 grain bullets seem to be up for the job!

......the occasional hunter wielding a hopelessly inaccurate rifle, living by the fantastical rule that this cartridge can deliver the goods, regardless of shot placement or rifle accuracy. The correct term for this is minute of ego.