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1-16, 360 ??

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13 February 2007, 07:56
Idared
1-16, 360 ??
I recently picked up a 1903A3 Springfield in 35 Whelen AI. Upon taking the barreled action out of the stock I discovered the following stamped on the bottom of the shank on the barrel.

1-16
360

Now 1-16 makes some sense to me as I assume it means 1 in 16 twist. But, 360 is a bit more puzzling. Any ideas?

Many thanks


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"We do not exaggerate when we state positively that the remodelled Springfield is the best and most suitable "all 'round" rifle".......Seymour Griffin, GRIFFIN & HOWE, Inc.
13 February 2007, 08:05
Bill Leeper
Seems most likely to be the groove diameter of the barrel. A little oversized but probably not uncommon. Regards, Bill.
13 February 2007, 08:11
Idared
Thanks for the reply Bill. Seeing as how this is 360 rather than 358 could this could possibly indicate the barrel was rebored at one time? It is not a particularly heavy barrel for a 35 caliber.


******************************
"We do not exaggerate when we state positively that the remodelled Springfield is the best and most suitable "all 'round" rifle".......Seymour Griffin, GRIFFIN & HOWE, Inc.
13 February 2007, 17:03
jeffeosso
Could have been bored to 360 intentionally, and meant for GC, then rechambered for the AI,,,

slug the barrel, and you'll know in 15 mins Smiler


opinions vary band of bubbas and STC hunting Club

Information on Ammoguide about
the416AR, 458AR, 470AR, 500AR
What is an AR round? Case Drawings 416-458-470AR and 500AR.
476AR,
http://www.weaponsmith.com
14 February 2007, 04:09
Yentna River
One complete turn, 360 degrees? Just a guess


Steve