The round used is HEDP for MK-19. It's penetration is 50mm. Even said to be as high as 75mm by GD Ordnance. Normal APC armor is usually <50mm excluding heavier vehicles like Puma and Bradley.
And being able to penetrate 20 inches of sandbags, it really shouldn't take as long as it does to destroy a firebase or a TOW emplacement. ATM you need a ridiculous amount of grenades to destroy a built asset.The M433 HEDP grenade has a small shaped charge that penetrates better than the HE round. It also has a thin wire wrapping that bursts into a dense fragmentation pattern, creating casualties out to 5 meters. Because they explode on contact, HEDP rounds achieve the same penetration regardless of range.
The high explosive dual purpose round can penetrate 2 inches (50 mm) of armor plate, 12 inches (300 mm) of pine logs, 16 inches (400 mm) of concrete blocks, or 20 inches (500 mm) of sandbags at ranges up to 1,312 feet (400 m).
M433 40mm CartridgeThe M433 cartridge is a dual purpose impact type round which is designed to penetrate at least two inches of steel armor at 0? angle of obliquity and inflict personnel casualties in the target area. This item is Code A, approved for service use. This is a training standard item used in both training and combat.
Vehicle coaxial guns should either not drop or drop a lot less, because IRL they either have laser range, sighting tables or both.
