Barrel blank

Idahoroe · May 6, 2008, 09:07 PM

I have a barrel blank with no indication which end to chamber.(no taper,etc) Does it make any difference which end I ream? I would assume the one the button started on. Any help is appreciated.

Scorch · May 6, 2008, 10:34 PM

One end is stamped with the caliber and twist right next to the bore. That is the end to chamber.

Idahoroe · May 7, 2008, 01:06 PM

Actually there is no stamping other than the number 6 on one end. That's what I meant by no indication. There is a slight chamfer to the bore on the other end. Thx for your help

Scorch · May 7, 2008, 01:22 PM

Then the end with the number 6 is the chamber end.

James K · May 8, 2008, 04:01 PM

OK, Scorch, I would probably say the same thing, but if the barrel is a straight tube, there really isn't any difference, or any reason to prefer one end over the other for threading and chambering. It's going to be a heavy sucker, though.

Jim

ZeroJunk · May 8, 2008, 04:06 PM

Wouldn't you have the bullet spinning in the wrong direction.

Harry Bonar · May 8, 2008, 07:57 PM

Sir.
Who or where did you get this barrel=what caliber is it.
Harry B.

brickeyee · May 9, 2008, 10:18 AM

Quote:

OK, Scorch, I would probably say the same thing, but if the barrel is a straight tube, there really isn't any difference, or any reason to prefer one end over the other for threading and chambering. It's going to be a heavy sucker, though.

The barrel was bored, reamed, and rifled from the same end.
Dending on how well made it is it may be more or less uniform.

James K · May 9, 2008, 02:36 PM

It may be better to let ZeroJunk think about his question for a little while, or even check it out.

Jim

Scorch · May 9, 2008, 03:14 PM

Quote:

OK, Scorch, I would probably say the same thing, but if the barrel is a straight tube, there really isn't any difference, or any reason to prefer one end over the other for threading and chambering.

Barrels are deep drilled, reamed, honed, rifled, and lapped from one end. As a consequence, most barrels are slightly washed out on one end by the insertion and removal of the tools, therefore the bore is slightly larger at the end where the tools are inserted and removed. If you use that end as the chamber, you remove that area of the bore that is slightly larger, and leave the taper towards the muzzle so that the muzzle has a very slight constriction, sometimes as small as .00005' (one half of one ten-thousandth of an inch). A barrel that is slightly smaller at the muzzle will shoot better than a barrel that is looser towards the muzzle.

Slopemeno · May 9, 2008, 04:34 PM

It's not unusual to see a barrel blank in the white with an arrow drawn on it in metal marking pen pointing towards the muzzle.

ZeroJunk · May 9, 2008, 05:34 PM

Quote:

It may be better to let ZeroJunk think about his question for a little while, or even check it out.

I thought it out beforehand , just messing around.

Harry Bonar · May 9, 2008, 08:27 PM

Sir
SCORCH has been trying to clear this up = listen to him.
Where in thunder does a person obtain a commercial barrel blank with no markings on it. I would not use the thing.
Most ALL blanks, basic barrel blanks, have the caliber, twist and breech or muzzle stamped on it. If it does not, it needs to have, was in the junk bin or some other shady origin.
What steel, 4140, 4130, or stainles grade is it = not knowing that I would not use it.
I am sorry about being so direct, but this is going nowhere.
Harry B.

Hawg · May 9, 2008, 08:53 PM

Prolly a discount barrel like Numrich sells. I bought one that was already tapered but not chambered with no markings for 69.00. One of the best barrels I've ever had.

May 6, 2008, 09:07 PM	#1
Idahoroe Junior Member Join Date: May 6, 2008 Posts: 2	Barrel blank I have a barrel blank with no indication which end to chamber.(no taper,etc) Does it make any difference which end I ream? I would assume the one the button started on. Any help is appreciated.

May 6, 2008, 10:34 PM	#2
Scorch Senior Member Join Date: February 13, 2006 Location: Washington state Posts: 15,248	One end is stamped with the caliber and twist right next to the bore. That is the end to chamber. __________________ Never try to educate someone who resists knowledge at all costs. But what do I know? Summit Arms Services

May 7, 2008, 01:22 PM	#4
Scorch Senior Member Join Date: February 13, 2006 Location: Washington state Posts: 15,248	Then the end with the number 6 is the chamber end. __________________ Never try to educate someone who resists knowledge at all costs. But what do I know? Summit Arms Services

May 8, 2008, 07:57 PM	#7
Harry Bonar Senior Member Join Date: December 5, 2004 Location: In the Vincent, Ohio general area. Posts: 1,804	Blank Sir. Who or where did you get this barrel=what caliber is it. Harry B.

May 9, 2008, 08:27 PM	#13
Harry Bonar Senior Member Join Date: December 5, 2004 Location: In the Vincent, Ohio general area. Posts: 1,804	Blank Sir SCORCH has been trying to clear this up = listen to him. Where in thunder does a person obtain a commercial barrel blank with no markings on it. I would not use the thing. Most ALL blanks, basic barrel blanks, have the caliber, twist and breech or muzzle stamped on it. If it does not, it needs to have, was in the junk bin or some other shady origin. What steel, 4140, 4130, or stainles grade is it = not knowing that I would not use it. I am sorry about being so direct, but this is going nowhere. Harry B.

May 7, 2008, 01:06 PM	#3
Idahoroe Junior Member Join Date: May 6, 2008 Posts: 2	Actually there is no stamping other than the number 6 on one end. That's what I meant by no indication. There is a slight chamfer to the bore on the other end. Thx for your help

May 8, 2008, 04:01 PM	#5
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	OK, Scorch, I would probably say the same thing, but if the barrel is a straight tube, there really isn't any difference, or any reason to prefer one end over the other for threading and chambering. It's going to be a heavy sucker, though. Jim

May 8, 2008, 04:06 PM	#6
ZeroJunk Senior Member Join Date: August 14, 2006 Location: Browns Summit NC Posts: 2,589	Wouldn't you have the bullet spinning in the wrong direction.

May 9, 2008, 02:36 PM	#9
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	It may be better to let ZeroJunk think about his question for a little while, or even check it out. Jim

May 9, 2008, 04:34 PM	#11
Slopemeno Senior Member Join Date: January 19, 2007 Posts: 2,663	It's not unusual to see a barrel blank in the white with an arrow drawn on it in metal marking pen pointing towards the muzzle.

May 9, 2008, 08:53 PM	#14
Hawg Senior Member Join Date: September 8, 2007 Location: Mississippi Posts: 16,190	Prolly a discount barrel like Numrich sells. I bought one that was already tapered but not chambered with no markings for 69.00. One of the best barrels I've ever had.