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GUNMASTER-120
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Caliber .50/12.7mm Tank Inbore Subcaliber Device
For M256 & L44/55 120mm Tank Guns.
The GUNMASTER-120, Caliber .50 Tank Inbore Device, is our latest upgrade of the original WALENTINE Cal.50 Inbore. The GUNMASTER-120 uses a heavy, bench rest action and a BMG chrome-moly match grade barrel. Chambered for NATO standard Cal.50/12.7mm x 99 rounds and M962 Saboted Light Armor Penetrator-Tracer (SLAP-T), the GUNMASTER-120 is the most economical, accurate, direct fire, Subcaliber, training device available for M256 and L44/55, 120mm smoothbore guns. GUNMASTERS Inbores are inexpensive to procure, use, and maintain.
GUNMASTERS Caliber .50 Inbores are easily deployable to local training areas (LTA) or "downrange" areas by tank units. They are easily supportable at unit level with basic issue tools and CTA-50 supplies.
Tank crewmen enjoy using GUNMASTERS Cal.50 Inbores due to their simplicity, ruggedness, and ease of maintenance.
WARRANTY: All GUNMASTER-120 Inbores have a 6 year unlimited warranty on all parts (including solenoids). If the Inbore breaks due to fair wear and tear, GUNMASTERS will repair or replace it a no cost to the unit. Units are responsible for shipping to and from GUNMASTERS, LLC.
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The GUNMASTER-120 has a maximum effective range of 1500 meters using NATO standard, Caliber .50/12.7mm x 99 tracer ammunition and 2000 meters with M962 SLAP-T.
Range & Superelevation (Mils) Comparison
RANGE (Meters) |
120mm HEAT-MPT M830 |
M962 SLAP-T |
Caliber .50 API-T, M20 |
300 |
1.2 |
1.1 |
2.3 |
400 |
1.6 |
1.5 |
3.1 |
500 |
2.1 |
1.9 |
4.1 |
600 |
2.6 |
2.3 |
5.1 |
700 |
3.0 |
2.8 |
6.2 |
800 |
3.5 |
3.3 |
7.5 |
900 |
4.0 |
3.7 |
8.8 |
1000 |
4.6 |
4.3 |
10.3 |
1100 |
5.1 |
4.8 |
11.8 |
1200 |
5.7 |
5.4 |
13.3 |
1300 |
6.3 |
6.0 |
15.6 |
1400 |
7.0 |
6.6 |
17.7 |
1500 |
7.6 |
7.3 |
20.5 Tracer Burnout |
1600 |
8.3 |
8.0 |
23.3 |
1700 |
9.0 |
8.7 |
26.3 |
1800 |
9.8 |
9.5 |
29.3 |
1900 |
10.5 |
10.3 |
33.3 |
2000 |
11.4 |
11.2 Tracer Burnout |
36.3 |
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GUNMASTER-120 SPECIFICATIONS
Caliber: .50/12.7mm x 99
Weight of Inbore: 50 lb (21.45 kg)
Weight of Barrel: 30 lb (13.63 kg)
Length of Inbore: 60 in (152.39 cm)
Length of Barrel: 45 in (114.30 cm)
Length of Rifling: 41.88 in (106.38 cm)
Muzzle Velocity (approx): 3050 fps (929.64 mps) (M20/M17), 4000 fps (1212.12 mps) (M962)
Maximum Range: 6,767 meters
Maximum Effective Range: 1500 meters (M20/M17), 2000 meters (M962 SLAP-T)
Action: Single Shot, Bolt Action
Trigger: 24-28 volt DC, Linear, MILSPEC
Ammunition: NATO Standard, Caliber .50/12.7mm x 99
Compatible Tank Guns: US M256, GE L44/55
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