Hornaday manual #7 has data. Also about the same as the 22 Cheetah and close to the 224 Clark. Still kicking around building one then the 250AI with a 7 or 8 twist has it's appeal as well as the 5.6x57mm.

Not sure if the metric version comes with a standard neck though. The original had a thick neck to shoot inserts for 22 hornet and rim-fire adapters.

Those Montana guys must have small state syndrome. Yah & Minnesota too.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli