I shot my 03 out to 1153 yds last year at Raton. I had fun shooting the famous White Buffalo. Anyway, from memory, I had it out at over 120 (not minutes - that requires barrel length calculations as well). There is a picture of the rifle in one of Michael's old threads on shooting with his rifles, but I can't find it to show you.

this is the best photo available at the moment.
http://www.amoskeagauction.com/104/414.html

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BrentD, (Professor - just for Stan)
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[Linked Image from i.imgur.com]