I have--
a Rem. 720 with a custom 24" stainless barrel, in .223 on it. I got all the info on it when I purchased it used. I have lost it and its been awhile so do not remember any of it, except barrel maker is or was in Ind. I am trying to figure the twist, usual method, mark rod, count turns, etc. Figuring the rifled only part of barrel (18 1/8") I get 13.4 turns, which seems very odd. Using total barrel length I get 16 turns.
Which method is correct? Thanks for any help.
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