Meson guns

I am not sure I would like to have a meson gun firing through another meson
gun or the ships fusor for two.  Most of the ship should be transparent to
meson fire although one might expect some "minor" sideffects along the axis of
fire, particularly are the first few tech levels for meson weaponry.
For a large enough weapon these "side effects", trivial fractions of the
main weapons power, might belarger than one would like effecting your own ship,
although they may well be acceptable in a planetary defense mode.