Sorry, there is no way of knowing without trying this with your own rifle. Once you have a reference made, you can then use a 25 yard sight-in to better advantage (if you are very, very careful).
The biggest variable in the 25/100 yard relationship is the height of the scope above the centerline of the bore. I think most 'sight-in charts' assume this is exactly 1.5 inches. It could be very different on your rifle. And, of course, bullet velocity is critical. Your barrel length may cause quite a different bullet velocity than the factory test rifles.
I often sight in new new rifle/scope combos at 25 yards using the factory charts. That will get me 'close' at 100 yards, but I find considerable 'fine tuning' is almost always required when I get back to the 100 yard bench. Even then, using factory trajectory charts will usually require further refinement when I move to 200 yards.
Always consider a 25 yard sight-in as a beginning to a more lengthly process. After you establish a reference for a particular scope/rifle/ammo combo, it will be more useful (possibly for use after rifle disassambly and reassembly). Even then, be VERY exact with your 25 yard sight-in. A 1 inch error at 25 yards translates to an 8 inch error at 200!
