What Does The 8.82 Stand for?

cirelaw · 08-16-2017, 10:35 AM

Is it the same on all models?

alanint · 08-16-2017, 10:39 AM

It is the bore diameter, land to land in the barrel. All are not the same. You often see variations in the decimals; i.e. 8.83, 8.81, although 8.82 seems to be, by far, the most common.

alanint · 08-16-2017, 10:41 AM

Although I once had an "expert" come up to me at a gun show, insisting that the gun I sold him was an import, as it had an August, 1982 Import Stamp!

LOL!

cirelaw · 08-16-2017, 10:58 AM

If they are the same how do they track a bullet to a particular gun? Whats the differences?

cirelaw · 08-16-2017, 11:22 AM

I found a great article~ http://www.firearmsid.com/A_bulletIDrifling.htm

Chickenthief · 08-16-2017, 11:23 AM

Longitudinal striations and miniscule imperfections in the barrel makes unique marks on the fired bullet.

http://www.despatch.cth.com.au/Misc/...t/forensic.htm

Thats why the Italian mafia used 22LR pistols for liquidations. Once a soft lead bullet had penetrated the melon it was to mangled up to identify to a specific weapon.

cirelaw · 08-16-2017, 11:37 AM

Simply Amazing, Thank You!!

mrerick · 08-16-2017, 02:05 PM

The 8.81 through 8.85 bore measurement was gauged for each barrel as part of the manufacturing process. 8.82mm is the optimum land to land measurement. 9.02mm the optimal groove to groove measurement.

Since this was measured and stamped when the barrel was brand new, it is possible to determine the amount of wear a barrel has experienced by gauging it again at a later time.

Marc

Edward Tinker · 08-16-2017, 02:12 PM

in short - see the FAQ

it covers this

cirelaw · 08-16-2017, 02:25 PM

Frequently Asked Questions is one of the most useful resource available! Under 'General Information' on your left! Check it out!!

08-16-2017, 10:35 AM	#1
cirelaw Lifer Lifetime Forum Patron Join Date: Dec 2003 Location: PORT ST LUCIE, FLORIDA Posts: 12,216 Thanks: 6,209 Thanked 4,138 Times in 2,176 Posts	What Does The 8.82 Stand for? Is it the same on all models? Attached Thumbnails

08-16-2017, 11:22 AM	#5
cirelaw Lifer Lifetime Forum Patron Join Date: Dec 2003 Location: PORT ST LUCIE, FLORIDA Posts: 12,216 Thanks: 6,209 Thanked 4,138 Times in 2,176 Posts	I found a great article~ http://www.firearmsid.com/A_bulletIDrifling.htm Attached Thumbnails

08-16-2017, 02:05 PM	#8
mrerick Super Moderator - Patron LugerForum Life Patron Join Date: Dec 2009 Location: Eastern North Carolina, USA Posts: 3,919 Thanks: 1,377 Thanked 3,135 Times in 1,518 Posts	The 8.81 through 8.85 bore measurement was gauged for each barrel as part of the manufacturing process. 8.82mm is the optimum land to land measurement. 9.02mm the optimal groove to groove measurement. Since this was measured and stamped when the barrel was brand new, it is possible to determine the amount of wear a barrel has experienced by gauging it again at a later time. Marc __________________ Igitur si vis pacem, para bellum - - Therefore if you want peace, prepare for war.

08-16-2017, 10:39 AM	#2
alanint User Join Date: Mar 2008 Location: Marco Island, Florida Posts: 4,867 Thanks: 1,685 Thanked 1,917 Times in 1,193 Posts	It is the bore diameter, land to land in the barrel. All are not the same. You often see variations in the decimals; i.e. 8.83, 8.81, although 8.82 seems to be, by far, the most common.

08-16-2017, 10:41 AM	#3
alanint User Join Date: Mar 2008 Location: Marco Island, Florida Posts: 4,867 Thanks: 1,685 Thanked 1,917 Times in 1,193 Posts	Although I once had an "expert" come up to me at a gun show, insisting that the gun I sold him was an import, as it had an August, 1982 Import Stamp! LOL!

08-16-2017, 10:58 AM	#4
cirelaw Lifer Lifetime Forum Patron Join Date: Dec 2003 Location: PORT ST LUCIE, FLORIDA Posts: 12,216 Thanks: 6,209 Thanked 4,138 Times in 2,176 Posts	If they are the same how do they track a bullet to a particular gun? Whats the differences?

08-16-2017, 11:23 AM	#6
Chickenthief User Join Date: Dec 2016 Location: Denmark Posts: 135 Thanks: 0 Thanked 131 Times in 48 Posts	Longitudinal striations and miniscule imperfections in the barrel makes unique marks on the fired bullet. http://www.despatch.cth.com.au/Misc/...t/forensic.htm Thats why the Italian mafia used 22LR pistols for liquidations. Once a soft lead bullet had penetrated the melon it was to mangled up to identify to a specific weapon.

08-16-2017, 11:37 AM	#7
cirelaw Lifer Lifetime Forum Patron Join Date: Dec 2003 Location: PORT ST LUCIE, FLORIDA Posts: 12,216 Thanks: 6,209 Thanked 4,138 Times in 2,176 Posts	Simply Amazing, Thank You!!

08-16-2017, 02:12 PM	#9
Edward Tinker Super Moderator Eternal Lifer LugerForum Patron Join Date: Jun 2002 Location: North of Spokane, WA Posts: 15,960 Thanks: 2,062 Thanked 4,591 Times in 2,114 Posts	in short - see the FAQ it covers this

08-16-2017, 02:25 PM	#10
cirelaw Lifer Lifetime Forum Patron Join Date: Dec 2003 Location: PORT ST LUCIE, FLORIDA Posts: 12,216 Thanks: 6,209 Thanked 4,138 Times in 2,176 Posts	Frequently Asked Questions is one of the most useful resource available! Under 'General Information' on your left! Check it out!!