Thread: Centrefire scope on rimfire?

It seems like I may have got some bad advice when I bought a scope for my CZ452 .22LR. I wanted something reasonably decent, so went for a Leupold VX1 3-9x40mm. I'm pretty happy with the results, good groupings at 25, 50 and 75 metres, but the occasional shot does seem to go astray and I've missed the odd bunny when I was convinced it was in the bag, so it got me thinking.

I emailed Leupold and they confirmed that the parallax is set to 150 yards, way beyond 75 metres which is my comfortable shooting distance. Questions are:

1) Do you think parallax is that big a deal?

2) If I replaced it with an adjustable objective "centrefire" scope would this solve the problem? Would there be any other issues with this kind of scope on my .22LR?

3) This is just out of interest, for those shooting 100 metres plus with a rimfire, say a .17HMR, what parallax setting do you go for?

Please correct me if I'm wrong, I don't think this is about "rimfire scopes" versus "centrefire scopes", it's just a matter of where the parallax is set. I understand there may be issues with putting a rimfire scope on a centrefire rifle with respect to recoil/durability, but my interest is in the other way round.

If I end up replacing the Leupold, I'm not too concerned as it will go on a centrefire rifle which I will buy in due course.