Not much to disagree on concerning the quality of March optics. But consider the original criteria, - range usage out to 1000yds and hunting to 600yds.
Whilst 1000yds range shooting is hardly taxing for any and all the scopes you and i have mentioned, the March scope will not compete so favourably in low light, dawn and dusk conditions when hunting.
In truth we really are talking about an extra 5-15mins, before or after the sun has set in which we can see to shoot. However that may be the few extra minutes in which that Stag / Buck of a lifetime emerges from the treeline.
Originally Posted by yawn
Will the 42 mm objective of the march carry the same light as a 56 mm ? of course not but exit pupil is all it gives up, the glass is as good as it gets.
You have noted your eyesight limitations which is to be commended - so many folks out there are oblivious and purchase the biggest magnification scope and binoculars available to them. However, if considering purely upon specification and the original selection criteria then i consider the current March scopes the inferior.
That doesn't mean i'm in any hurry to remove mine from my 300RUM!