I don't think I could say not knowing what the use is. If it is a hunting rifle, deer ect, I'd go with the 6x in a fixed power scope. Actually in a fixed power for hunting I would go down to a 4x for the wider field of view you'd get and probably a bit better eye relief. My own view of a 243 is that of a preditor and varmit rifle. With that in mind, I have a 3-9 power on my own. Your other choice sounds like a variable,10-40 and sounds like it will require higher rings. Then 10x on the small side is gonna change eye relief quite a bit, high rings will put your head higher on the stock and at 10x, you may have a problem picking up animals, especially at close range, not a whole lot of field of view at closer ranges.
Your screen name and the prices listed on the Schmidt-Bender seem to indicate you might be from Europe. Where are you from?
Hi again. I just went back and looked thru the site you posted. I see the 10-40X scope and notice parlex side adjustment and turret's. That speaks of a very long range use. If that is the case, you'd probably be better off with it than either Schmidt-Bender. I have a scope of similar design, Nikon 4 1/2-14 with side adjustment and turret's. I got it to shoot long range target's with my 6.5x06. Unfortunately the only reticule I could get when I got it is the last reticule I'd concider. Not that reticule would not even be a concideration, Nikon BDC, terrible. On a long range scope I'd prefer fine crosswires. Gives you more precise aiming than the thicker reticule. And I would concider what the windage and elevation adjustment is. 1/4" is fine for a hunting rifle but for a long range setup, I'd rather have 1/8". At 500yds, my 1/4" adjustment moves impact 1 1/4"; 1/8" is gonna cut that in half, in my view, better adjustment.
Ok. That is obviously a European sporting goods site. I'm guessing either Germany or Austria or maybe Denmark? I was in Germany in the service and took a trip to Denmark. Beautiful country. Especially liked it way down south in Germany. If you have some, a few photo's of the country would be nice.
Elk have been killed close to roads where they could be loaded whole into the bed of a pickup. But it doesn't happen often and I'm not sure that is the experience that I long for. The type of elk hunting that I prefer requires rigorous physical exertion that can cripple someone who is not in shape. Being a college hockey player I have to be in at least fair physical condition most of the year but when one of my buddies got back from the Navy Seals he changed the way I think about physical...