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272
Series - Land and Groove Gun Barrel Gages
The
Dyer Company's 272 Series Land and Groove Gun Barrel Diameter Gages provide
greater contact point measuring travel, a larger
range of gage application, higher accuracy, and better measurement
repeatability and reproducibility (Gage R & R), at a substantially
lower cost, than that available in any other system.
Designed
for both rifles and handguns of .22 to .45 caliber, the 272 Series Non-Tipping
Comparative Gages are available to measure barrel lengths up to 31.50"
(800 mm). The increased contact point measuring travel - between 0.004"
and 0.024" (0.I
mm and 0.6 mm) - allows use of the same nose guide to measure both lands
and grooves, providing a greater range of gage application, and consequent
cost savings, than that available in other systems. The 272 Series Gages
measure land and
groove manufacturing and wear diameter differences the entire
length of the barrel with accuracies of <0.0004" (<0.01 mm).
An
innovative transfer tube design also allows for measurement of
barrel
twist.
A
unique interchangeable component system increases the range of gage application
and further reduces overall gage equipment costs. Special custom sizing
is available for odd number of grooves, for higher precision weapons,
and for special rifled barrels.
Technical
Summary
- Caliber
Range: .22 to .45
- Measuring
Depths: up to 31.50" (800 mm)
- Contact
Point Travel: 0.004" to 0.024" (0.I mm to 0.6 mm)
- Gage
Accuracy: < 0.0004" (< 0.01 mm)
- Measuring
Force: 2 to 3 N
- Contact
Pins: Carbide Tipped
- Indicator
Holder Diameter: 0.375" (8.0 mm)
Order Specifications
- Caliber
- Number
of Grooves
- Length
of Twist
- Length
of Barrel
- Type
of Indicating Unit
 |
6
Indicator
Mechanical or electronic available for all holders.
Measurement is
comparative and nontipping.
5
Plastic Bushing (not shown)
To hold setting ring.
4
Setting Ring
Manufactured to size. Sets the gage. Held on holder
by plastic bushing for easy remastering.
3
Holder
Transfers the measurements of the sleeve to the
indicator. Scribed in 1/32" increments
2
Measuring Sleeve
Does the measuring. Carbide ball contacts measure
an individual land or groove the entire length of the barrel.
1
Nose Guide
Centers and guides the gage down the rifling.
Adjusts for both land and groove measurement.
|
| LISTING
OF RIFLE GAGING SIZES |
22
Caliber
22 Hornet, 222 Remington, 223 Remington (5.56 mm),
222 Remington Magnum, 22
PPC, 225 Winchester, 22-250-220 Swift |
243-6
mm
6mm PPC, 243 Winchester, 6 mm & 244 Remington,
240 Weatherby Magnum |
257
Caliber
250 Savage, 257 Roberts, 25-'06 Remington, 257 Weatherby
Magnum |
6.5
mm
6.5 x 55 mm, 6.5 mm Remington Magnum, 264 Winchester
Magnum |
270
Caliber
270 Winchester, 270 Weatherby Magnum |
7
mm
7 x 30 Waters, 7 mm-08 Remington, 7 x 57 mm Mauser,
280 Remington, (7 mm Express Remington),
284 Winchester, 7 mm Remington Magnum,
7 mm Weatherby Magnum |
30
Caliber
30 M1 Carbine, 7.62 x 39 mm, 30-30 Winchester, 300
Savage, 307 Winchester, 308 Winchester (7.62 mm NATO), 30-40 Krag,
30-'06, 300 H&H Magnum,
308 Norma Magnum (30-338), 300 Winchester Magnum, 300 Weatherby
Magnum |
311-321-323
Caliber
303 British, 32 Winchester Special (32 Remington),
8 x 57 mm Mauser, 8 mm/06, 8 mm Remington |
338-358-366
Caliber
338 Winchester Magnum, 340 Weatherby Magnum, 357
Magnum (Rifle), 35 Remington, 350 Remington Magnum, 356 Winchester,
358 Winchester, 358 Norma Magnum, 9.3 x 62 mm, 9.3 x 74R |
375-44-45
Caliber
375 Winchester, 375 H&H Magnum, 41 Magnum (Rifle)'44
Magnum (Rifle), 444 Marlin, 45-70, 456 Winchester Magnum |
| LISTING
OF HANDGUN GAGING SIZES |
22
Hornet (Pistol)
22 K-Hornet (Pistol)
221 Remington Fireball
6 mm TCU 357 Magnum
7 mm 8R Remington
7 mm TCU 35 Remington
7 mm International Rimmed
7 mm IHMSA
30 Carbine (Pistol)
30-30 Winchester (Pistol)
32 S & W Long
32 H & R Magnum
32-20
380 ACP
9 mm Parabellum |
38
Super
38 S & W
38 Special
357 Maximum
41 Magnum
44 Special
44 Magnum
45 Auto Rim
45 Auto
45 Colt
45 Colt for Ruger or Contender only
45 Winchester Magnum
454 Casull |
Please see charts below
| MODELS
AND SPECIFICATIONS |
| HOLDER |
OVERALL
LGTH |
CALIBER |
TUBE
DIA |
| 272-010 |
4.13"(105
mm) |
up
to 7mm |
0.157"
(4mm) |
| 272-015 |
9.84"
(250 mm) |
up
to 7 mm |
0.157"
(4mm) |
| 272-020 |
19.69"
(500 mm) |
up
to 7 mm |
0.157"
(4mm) |
| 272-030 |
31.50"(800
mm) |
up
to 7 mm |
0.157"
(4mm) |
| 272-040 |
4.13"
(105 mm) |
over
7 mm |
0.236"
(6 mm) |
| 272-050 |
9.84"
(250 mm) |
over
7 mm |
0.236"
(6 mm) |
| 272-060 |
19.69"
(500 mm) |
over
7 mm |
0.236"
(6 mm) |
| 272-070 |
31.50"(800
mm) |
over
7 mm |
0.236"
(6 mm) |
| MEASURING SLEEVE |
|
| 272-080 |
Specify
Caliber |
| NOSE
GUIDE |
|
| 272-085 |
Specify
Caliber |
| SETTING RING |
|
| 272-090 |
Specify
Caliber |
| PLASTIC BUSHING |
|
| 272-095 |
Specify
Caliber |
| INDICATOR |
TYPE |
GRADUATIONS |
RANGE |
| 458-001 |
Mechanical |
0.0001" |
0.200" |
| 451-001 |
Mechanical |
0.00005"-0.0001" |
0.004" |
| 458-003 |
Mechanical |
0.001
mm |
1.0
mm |
| 458-004 |
Mechanical |
0.01
mm |
10.0
mm |
| 900-103 |
Electronic |
0.0001"-0.001" |
0.0"-1.00" |
| 900-104 |
Electronic |
0.00005"-0.001" |
0.0"-1.00" |
| 902-201 |
Elect
Remote |
0.00005"-0.001" |
0.0"-4.0" |
| 902-202 |
Elect
Remote |
0.00001"-0.001" |
0.0"-1.0" |
| 902-205 |
Elect
Remote |
0.00005"-0.001" |
0.0"-1.0" |
| CASES |
TYPE |
SIZE |
|
| 308-006 |
Deluxe |
21"
x 16" x 8" |
|
| 308-007 |
Deluxe |
18"
x 14" x 7" |
|
| 308-008 |
Deluxe |
19"
x 13" x 6" |
|
| 308-009 |
Deluxe |
13"
x 9" x 5" |
|
| 308-010 |
Standard |
12"
x 8" x 2" |
|
| 308-011 |
Standard |
16"
x 12" x 5" |
|
| 308-012 |
Deluxe |
26"
x 13" x 5" |
|
| DRAWING |
| 240-DWG-MK |
Marked
up drawing of plug gage assembly |
| 240-DWG-FIN |
Finished
drawing of plug gage assembly |
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