OK, I settled on a different solution.
I briefly neglected my own advice.
Buy right, buy once!
The original thought was to purchase a forward mount NV unit for use with two differing rifles.
Then buy a decent thermal spotter for night-time foxing and day time use elsewhere.
Hence an FN455 was the front runner.
However! (Even if some folks disagree with the following) There are a lot of reports of the forward mount unit moving the scopes zero!
If there is even a slight chance of this I cannot have equipment introducing possible failure, with a missed shot, or worse, injured quarry.
The .22LR is only for close-range foxing, as such only needs an NV scope.
So I settled on a
Pard NV008P LRF from Blackwoods, (I did consider ATN but prefer my scopes shorter than the rifle it is mounted too

)
A great laser, that is kept on near full tight beam, works very well indeed.
I'll get a thermal spotter next, then a thermal for the .300 AAC later.
So back to the
Pard NV008P LRF
So far so good, Tuesday evening, one of two lamp shy foxes is no more.
Have a date with its partner this weekend.....
