CCI Mini Mag 40 gr solids for penetration. Also I cannot remember the
last time I had a misfire with Mini Mags, something that can't be said
about any other brand. I have an old LLama 22lr "Especial" automatic
that looks like a scaled down Colt 1911 that likes CCI Mini Mags.
Some years ago I decided to record the reliability of this combo
and I ran 2,000 rounds through the LLama without a single jam or
misfire.