That's another very good point in favour of LR, you have the flexibility to use different ammo, subs for when you need to be quiet, Supersonics (Stingers etc) for when you can trade a bit less silence for a bit more punch (up to HMR levels), if only the low speed subs could be more consistent. CB Longs are fine in mine at say 40 yards (possibly filling a FAC Air role) as long as it's a warm day, cold ammo goes all over the place.
i thought supersonic ammo for the .22lr were unstable and didnt group very well?