Robert Louis Company, Inc., 31 Shepard Hill Rd, Newtown, CT 06470 USA
The Shotgun Combo Gauge is an accurate and convenient device that measures all of the outside dimensions of your shotgun, which you need to know if you want your gun to fit properly:
- Length of Pull
- Drop at Comb and Heel
- Angle of Pitch
- Cast
The Shotgun Combo Gauge is a 24″ vernier caliper slotted at one end to hold a sliding Drop Meter. It can be used alone or with our 23″ EXTENSION which bolts on to the Combo Gauge to make the overall drop/pitch length 48″. The Extension also has a neodymium magnet installed which essentially “glues” the whole Combo Gauge to the gun’s rib for hands-free operation, further enhancing its convenience and usability.
99% of our customers purchase the Shotgun Combo Gauge with the Extension.
One DROP METER is standard on the Shotgun Combo Gauge, but a second Drop Meter can be added as an option, which gives greater versatility in measuring drop (you can measure at any two points along the comb simultaneously), or drop and pitch, or drop and cast simultaneously. The second Drop Meter can also be attached to the first Drop Meter to extend its length to a total of 10" from the horizontal index, making the true pitch and cast measurement of your gun accurate and fast.
The Shotgun Combo Gauge is patented - U.S. Patent # 7,287,338.
SHOTGUN COMBO GAUGE FEATURES AND BENEFITS:
- Reads both Metric and Inches for use worldwide
- Has easy-to-read bold numbers
- Lightweight — Made of aircraft aluminum
- Portable — Easy to travel with
- Optional Extension with Magnet. The magnet “glues” Shotgun Combo Gauge to gun rib for hands-free operation
- Optional Dual Drop Meters
SPECS FOR BASIC GAUGE:
- Length for drop measurement: 28″
- Length of pull: 24″
- Overall length: 29.5″
SPECS WITH 23" EXTENSION:
- Length for drop measurement: 48″
- Overall length: 49.5″
The Shotgun Combo Gauge is used by Gunsmiths, Firearms retailers, Manufacturers and Gun hobbyists from around the world.
Some of our customers include: Don Currie, Holland & Holland, Beretta, Boss, Chris Batha, Jerry Parks Young (CPSA Senior Coach MICSI), Dickson & MacNaughton, Browning/Winchester, Ruger, Perazzi (USA and Italy), Griffin & Howe, British Sporting Arms, Safari Outfitters, Brownells, Cabelas, Orvis, Kittery Trading Post, Kevin’s Catalog, Bass Pro Fine Gun Room, Dakota Arms, Jeff’s Outfitters, L.L. Bean, and many more.
GUN RESTS
For ease of measuring, it is best to place your gun on a GUN REST. If you don’t already have one, we offer two options:
Gun Rests - Support Your Gun when Measuring w/ Combo Gauge
PLASTIC GUN REST $88
2 YOKES for DIY GUN REST $37.50
PLASTIC GUN REST $88
GUN FITTER'S CASE $230
2 YOKES for DIY GUN REST $37.50
PLASTIC GUN REST $88
2 YOKES for DIY GUN REST $37.50
2 YOKES for DIY GUN REST $37.50
2 YOKES for DIY GUN REST $37.50
2 YOKES for DIY GUN REST $37.50
In addition to using our Plastic Gun Rest as a rest, you can also use it to store your gun cleaning supplies or some of our training and gunfitting tools (LaserShooter, LaserPro, BoreMaster) in the compartments at the base of the rest.
Our new, compact Gun Fitter's Case stores a Shotgun Combo Gauge (with Extension and 1 or 2 Drop Meters), 2 Yokes for holding your shotgun securely while measuring, and a LaserShooter, all of the tools needed for determining gun fit!
Build your own Gun Rest! We supply the yokes for holding your gun; you supply 3 pieces of wood! Or if you have a wood bench, you can drill 2 holes in it to hold our yokes when you need them and then remove them when doing other work.
Read Reviews & Testimonials
The BoreMaster Multi-Bore Gauge measures all the inside dimensions of your shotgun:
- BORE — .410 through 4 gauge and rifle barrels .405 and larger accurately in thousands
- CHOKE — fixed or screw-in. Measures screw-in chokes in or out of the gun
- CHAMBER — Chamber dimensions — Chamber length — Forcing cone dimensions and rifle chambers with diameter dimensions of .400″ and up.
- BARREL WALL THICKNESS — down to 6″ from the muzzle and 6″ from the breech (Barrel Wall Thickness Kit optional)
The BoreMaster is patented - U.S. Patent # 9,305,941.
With the BoreMaster, you can answer these questions
- Have the chokes on a gun been altered from the barrel markings?
- Are the barrels overbored? Original or aftermarket?
- Are the chambers 2″ or 2-1/2 “? Have they been altered to 2-3/4″ or 3”? Reproofed?
- Is the barrel wall thickness safe (6″ from the muzzle or breech)?
Specifications
- Spring-loaded probes always exert equal pressure on the bore, making readings accurate and repeatable
- LCD resolution: 0.001″/0.1″mm switchable inches/metric
- ID Measurement: Range-0.375″ to 1.200″. Depth to 6″.
- Accuracy: +/-0.001″
- Hardened steel construction
- Brass probe beads: 0.040″ projection
- 6″ probes graduated in inches and metric
- Measure barrel wall thickness (BWT) with BWT device.
- Accuracy: +/0.002″
- ABS scales always read true position
- Floating zero, relative measurements and absolute measurements
- Automatic shut-off
- Operates on a single type 357/SR-44 battery, 2 year life
- Includes 0.725″ calibration ring and calibration strip 0.025″ for BWT measurement
- Includes instructional DVD
OptionS
- Barrel Wall Thickness Kit
- Four Calibration Rings are available in the following gauge sizes: 12, 20, 28 Gauge and 410 Bore. The 12 Gauge Calibration Ring is included with every BoreMaster. The 20, 28, and 410 rings can be purchased individually.
A Good Reason to Own A BoreMaster
A Personal Experience Worth Sharing, by Bob Foege, BoreMaster Inventor
At a recent pheasant hunt, one shooter was using a magnificent Parker 12 gauge Frame 4. I routinely use the BoreMaster to measure older guns – for safety reasons as well as my own curiosity – and I discovered that this Parker had been drastically cleaned up inside; bore diameter after the chamber was 0.753″ and bore diameter 5″ in from the muzzle was 0.744″. Nominal 12 gauge bore size is 0.729″. The barrel wall thickness 5″ from the muzzle was 0.023″!
Although the owner was shooting target loads successfully, I warned him against using heavy pheasant loads and suggested that he have the barrel wall thickness measured mid-barrel.
The photo illustrates what a 1-1/4 oz. pheasant load did to the left barrel of this compromised gun.
Luckily no person was injured. Although the owner ignored my advice, the BoreMaster did its job by indicating a potentially dangerous condition. If the owner had used the BoreMaster when buying the gun he probably would have wisely declined the purchase.
Read BoreMaster Reviews & Testimonials
Gun Scale
Gun Scale Case
Gun Scale Case
Our Gun Scale is the gun enthusiast’s perfect product for the instant and accurate weighing of your guns. Accurate to 1/10th of an ounce in a clear digital readout with a maximum capacity of 13 lbs. (6 kilos). Reads selectively in pounds/ounces or kilos.
Gun Scale Case
Gun Scale Case
Gun Scale Case
Keep your Gun Scale out of harm's way by storing in our optional Gun Scale Case.