In the interview of Eddie McCallum by Eric Creegan, in 1968, Eddie McCallum describes one of the Munro families as coming from Killean
The Killean Munro is also described as having fought at Culloden, and surviving, returning the following day -16th April 1746.
According to google maps this is about 150 miles, whether down the Great Glen, or through Breadalbane. (A82 or A9 in current terms).

And in Google map terms this should take 1 day and 23 hours…. google map link here

The Duke of Argyll's men at Culloden were formed as part of Loudens Highlanders
As the Loudouns remained a company for a couple of years afterwards, going to Flanders, this story suggests that the Munro fled the field and left the army, maybe without permission??
Eddie describes there having been a sword known about at Killean, which was the one Munro brought back from Culloden.
Eddie was not sure of which side he fought on - most likely that of Cumberland, with the Duke !