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I assume you mean getting range markings engraved on your scope turrets? Corlanes in Dawson Creek at least used to offer that, and probably still do. I'm not sure if they'll do any scope or just the ones they sell though.
Kristian
I've had 2 scopes done by them now (Both B&L 6-24); 1 for my .223 w/ 52 gr. Bergers @ 3,280 fps & 1 for my .22 w/ S-K Rifle Match (40 gr. @ 1,070 fps).
You will find, however, that if you change bullets, velocity, temperature, altitude or anything else, it won't work.