How do you measure barrel length?

[RicInOR]

I shoot competitive and it comes up as a definition of divisions.
How do you do it?

Drop a dowel (pencil) down the barrel to the breach face - so you get the barrel and the chamber?

Is it different for wheel guns ?

TIA

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[rick]

http://www.swggun.org/swg/index.php...irearms&catid=10:guidelines-adopted&Itemid=37

 

[orygun]

Wheel guns, the cylinder (chamber) is not measured, so it would be forcing cone to muzzle. Any other firearm the breech (rear end of barrel) to muzzle (front of barrel) is barrel length.

 

[RicInOR]

A scientific working group just for this question ... wow.

@orygun @rick
Thanks for the knowledge.

 

[ikemay]

There is an oddity which I stumbled across in which the 1.875 inch LCR 9mm seems to benefit in FPS over the 2.7 inch Kimber Solo and the 3 inch Kahr PM9. Here is the article:

http://mousegunaddict.blogspot.com/2014/11/ruger-lcr-9mm-review-pocket-9mm-for.html

 

[Certaindeaf]

An odd thing.. the .357 mag came to be in 1935 and only was available in revolvers for quite a darn while.
The thing is, the published ballistics for decades for that cartridge came out of a quite long unvented barrel.. I forget.. 9-12"? when in reality they should have probably used a 6" vented all along to split the difference between the 8 3/8 and 4". The 4" was the most common carried length for lawmen for many years.

 

[mjbskwim]

I always use a tape measure.

 

[mjbskwim]

http://www.swggun.org/swg/index.php...irearms&catid=10:guidelines-adopted&Itemid=37

no linky

 

[rick]

Their front page says, "This site is down for maintenance. Please check back again soon." Sounds like they're working on it.

 

[No_Regerts]

I always use a tape measure.

Ruler works in a pinch on pistols. Yard stick for rifles.