Barrel lenght
Is there an industry standard for determining Bbl. lenght. I use the dowell to the face of the closed bolt, to the muzzle. Some of the sellers indicate Bbl lenght to be wierd, or something the mfr. never built, and state that is un- altered. Thx Hawkshaw
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Using your dowel method, your also including the entire case length which is not part of the barrel.
All the bolt actions I have are measured from the muzzle to the point where the barrel goes into the front of the receiver. Thats my understanding anyway.0 -
The BATFE uses face of bolt to muzzle method for determining barrel length. 0 -
IF the chamber is part of the barrel, than it's the distance from the (closed) bolt/breach face to the muzzle.
IF the chamber is NOT part of the barrel (IE a revolver), than it's the total length of the barrel (including that part that's buried in the frame).0 -
THX Guys---I think I'll go with the ATF!!!!! 0 -
"IF the chamber is NOT part of the barrel (IE a revolver), than it's the total length of the barrel (including that part that's buried in the frame)."................unless you are in Wisconsin, then it is from the tip of the firing pin to the end of the barrel (dowel method)[;)] 0 -
quote:Originally posted by forgemonkey
quote:Originally posted by MIKE WISKEY
"IF the chamber is NOT part of the barrel (IE a revolver), than it's the total length of the barrel (including that part that's buried in the frame)."................unless you are in Wisconsin, then it is from the tip of the firing pin to the end of the barrel (dowel method)[;)]
Mike,,,,educate me. What's the purpose re the measuring of the cylinder in a revolver,,,,,is there any min. requirements for your state ???
That only applies to deer hunting and I'm pretty sure it's a four inch barrel.0 -
Hawkshaw,
quote:Some of the sellers indicate Bbl lenght to be wierd, or something the mfr. never built, and state that is un- altered.
That's because most sellers aren't sophisticated enough or know the actual method of determining the length of the barrel. Mostly it's laziness... It's easier to throw a tape or yardstick on the barrel to measure from the front of the action to the muzzle than to get a dowel and use it to get the proper length.
The industry standard is from the closed bolt face to the end of the muzzle. That's how the BATFE does it and that's the standard we use.
There are industry exceptions from the military such as M24 rifles or M40-A1, A3 or A5 but these stem from the military taking the stance of KISS rather than accepting the necessity of proper training.
Best.0 -
Yup, closed bolt face to end of barrel is what I have used as well. 0 -
A little bit of history of Wisconsin's handgun barrel measurement method. When Wisc originally approved the use of handguns for deer hunting only the 357,41 and 44 magnum or a cartridge producing 1000 ft lb of energy were legal. The original law specified a 5 1/2" barrel length to prevent the use of 1911 type semiautos. The concept was revolvers were appropriate hunting weapons and by including the cylinder length as part of the barrel length a normal 4" barreled revolver would meet the arbitrary 5 1/2" standard. The caliber requirement has been changed to 22 caliber centerfire and larger but the 5 1/2" length requirement remains. The energy requirement has been dropped. Now a 1911 type semiauto with a replacement barrel of 5 1/2" or longer would be legal. This is what happens when the writing of laws is left to persons with no concept of what they are trying to accomplish. 0
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