powder capacity is a no brainer. simply use one of the slowest powders that you can fit a full charge into the space you have available.
if the 'may or may not work well at certain ranges' is speaking of terminal effects, it would be hard to do worse than the SMK. my thoughts are the tip would enable Sierra to make expansion more consistent. Sierra's product description mentions having a thicker jacket than their varmint bullets.
and, Sierra says these will need 1:7" or 1:8" twist.
