RPM
Member
FYI
Since spare tubes are not yet available for the Sierra, I got curious and did some measuring. The Jr. Statesman II lower barrel uses the same tube diameter and is only about a 16th or so shorter. There is enough slop in the Sierra mechanism that if you get in a pinch, the Jr. Statesman lower tube can be used for the Sierra, but the pen will be just a little shorter.
Richard
Since spare tubes are not yet available for the Sierra, I got curious and did some measuring. The Jr. Statesman II lower barrel uses the same tube diameter and is only about a 16th or so shorter. There is enough slop in the Sierra mechanism that if you get in a pinch, the Jr. Statesman lower tube can be used for the Sierra, but the pen will be just a little shorter.
Richard
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