X bow string?

[MCavity]

I've just been digging around my loft and found my old rifle Xbow with thestringer and a few bolts.
Needless to say its seen better days as its been left for years with the string on the bow.

So- I have managed to get the old string off the bow and order some new string. The problem I can see is the old string is 25 inches, the span on the 'bow' is 26 inches nook to nook and the stringer is 28 inches.

I have ordered some 26 and a half inch strings as they were the only ones on the site. Will this work on my bow as its a real bugger to cock the 25 inch string? Can you get different size strings, or is it one fit for all?

All I can tell you about the bow that its a Barnett, and has ' Veloci - speed glass' written on the arm.

I just know you are the right peeps to ask about this