colt 1911 - Barrel

116°±2°
6°
.165
.84
-.01
+.00
R.10
-.01
+.00
R.17
-.01
+.00
.670
-.005
+.000
.369
-.005
+.000
24°
.015
-.010
+.000
.450
.790
-.000
+.020
.290
-.005
+.000
35°
24°
RIFLING SHALL CONSIST OF 6 EQ SP GROOVES
FINISH: THIN DENSE CHROME COATING (ARMOLOY
4.
TDC) IAW SAE AMS2438, AFTER SURFACE POLISHING.
ALL DIMENSIONS APPLY AFTER HEAT TREATMENT.
HAVING A CCW HELIX
5.
OF 1 TURN IN 16 INCHES
HEAT TREATMENT: AUSTEMPER TO RH C 53 TO 56.5.
NOTES:
MACHINED FINISH
63
EXCEPT AS NOTED.1.
DIAMETERS AT MUZZLE SHALL NOT BE GREATER2.
THAN THOSE AT BREECH.
MATERIAL: STEEL, 4150, ASTM A-108; AUSTENITIC3.
GRAIN SIZE 5 OR FINER.
REVISION HISTORY
ZONE REV DESCRIPTION DATE APPRVD
1-704-860-1202
IS PROHIBITED.
HEAT TREAT
A
B
C
D D
C
B
A
8
7 6 5 4 3 2 1
8
7 6 5
SYMM & CONC: 1/2 FEATURE TOL.
SEE NOTE 5
1st MADE FOR:
―
BARREL
ENGRG
09/15/2010 R Benson
07/29/2010 R Benson
SHEET 1 of 1 WEIGHT: 0.21 LBSCALE: 2:1
X 7791193 D
M1911-A1 REDUX
Gastonia, NC 28054
Benson Consulting, LLP
4 3
1
5 - 1994.
THIRD ANGLE PROJECTION
DO NOT SCALE DRAWING
MODELED
DRAWN
MFG
QA
BY DATE
MATERIAL
FINISH
SIZE REV
FAB FINISH: 125 MICROINCHES.
BRK/FIL SHARP COR .005 MAX.
DIM & TOL IAW ASME Y14.
SEE NOTE 3
• rhbenson@earthlink.net
•
DWG NO.
TITLE
UNLESS OTHERWISE SPECIFIED:
DIMENSIONS ARE IN INCHES.
TOLERANCES: ANGULAR
±
.5
°
,
2 PL ±.01, 3 PL ±.005, 4 PL ±.0005,
THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE AND INTELLECTUAL PROPERTY OF
Benson Consulting, LLP
.
ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF
Benson Consulting, LLP
SEE NOTE 4
- .004
+.000
.696
.188
- .005
+.000
- .005
+.000
R.025
.415
.005+
.000-
.138
.000+
.004-
.362
R.22
- .01
+.00
R.06
BREAK EDGE
.015+.010 X 45
BOTH SIDES
.005+
±1.0°
.000-
28.5°
.149
2X TRUE R.025
- .010
+.000
32
32
.450
+.002
GROOVE:
.000
1.81
.000
1.81
+
GROOVE
.002
-
TRUE R
LAND .442
TRUE R
-
6X .147
- .000
+.013
R.31
A
A
- .010
+.000
±.002
R.025
.4065
6X R.010
- .005
+.000
- .000
+.010
45°3X .015
.000+
.006-
1.152
.004+
.000-
.176
.000+
-
.176
.000+
.006-
1.476
.004
1.801
.0040
+
.000
±.002
.659
.006-
2.027
5.031
+
.0000-
.503
X
5X .005
- .000
+.010
45° X
D
D
B
B
C
C
SECTION G-G
R
.232
- .000
+.003
SECTION D-D
32
BASICBASIC
.090 : 1 .008 : 1
32
.474
- .000
+.002
.743
- .000
+.003
SECTION C-C
R.348
- .005
+.000
SECTION B-B
.001+
.000
.005+
.160
- .000
.154
-
2X R.015
- .010
+.000
BEFORE COATING
SECTION A-A
POLISH RAMP
1
6
+
.438R
.512
- .005
X
.000
.062
.000
- .000
+
45°
.580
- .002
+
.02
R.02
E
E