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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
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
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
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 Haggen
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.