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Barrel Length Measurement

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05 October 2010, 15:53
RenegadeRN
Barrel Length Measurement
When measuring barrel length what is the correct measurement? From face of receiver to crown? Or from chamber inside of receiver to crown? (I hope those are correct terms..LOL!)

I have been really interested in obtaining a factory rifle and the advertised barrel length was 24", but when measured from the face of the receiver to crown it was 21.5". Does this seem right or a fluke?


'I pledge allegiance to the flag of the United States of America and to the republic for which it stands, one nation under God, indivisable, with liberty and justice for all.'
05 October 2010, 16:10
D Humbarger
From the breech or bolt face to the muzzle. Just drop a dowel rod down the muzzle & measure.



Doug Humbarger
NRA Life member
Tonkin Gulf Yacht Club 72'73.
Yankee Station

Try to look unimportant. Your enemy might be low on ammo.
05 October 2010, 16:20
RenegadeRN
Thanks Doug for this timely reply. I'll get the terms right. Makes perfect sense. Advertising by manufacturer is correct!


'I pledge allegiance to the flag of the United States of America and to the republic for which it stands, one nation under God, indivisable, with liberty and justice for all.'
05 October 2010, 17:12
jeffeosso
quote:
Originally posted by D Humbarger:
From the breech or bolt face to the muzzle. Just drop a dowel rod down the muzzle & measure.


heh, to be clear, from a CLOSED breech or bolt ...


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
05 October 2010, 18:49
Jim Kobe
quote:
Originally posted by RenegadeRN:

I have been really interested in obtaining a factory rifle and the advertised barrel length was 24", but when measured from the face of the receiver to crown it was 21.5". Does this seem right or a fluke?


If it measures only 21.5 from the face of the receiver, it sure can't be a 24". I don't know of any receiver that has about an inch and a half of receiver threads.


Jim Kobe
10841 Oxborough Ave So
Bloomington MN 55437
952.884.6031
Professional member American Custom Gunmakers Guild

05 October 2010, 19:28
jeffeosso
Jim,
hence my comment on clsoed bolt ... a 308 on a rem model 7, with a 21.5inch barrel just MIGHT measure 24" with the bolt back...

OR its a pump shotgun?


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
05 October 2010, 21:21
ramrod340
quote:
I don't know of any receiver that has about an inch and a half of receiver threads.

That would be 2.5" 24-21.5= 2.5. Even more unlikely


As usual just my $.02
Paul K