sentinel wrote:Also have you notice while playing muttrah that AAVs tend to use it's 40mm grenade laucher to take out apcs in seconds.. That is kinda weird isn't, since I have never heard about 40mm Armor Piercing grenades that destroy apcs with just few grenades. This would mean that apcs can be destroyed with M203s and hand grenades. But that is whole another thing...
The M430 and M433 are both HEDP rounds, with the same warhead assembly. The difference is that the M430 is a 40x53mm HVLR and the M433 is a 40x46mm LVLR. So in theory, the M203 will have similar capabilities of the Mk 19 in regards to the warhead function.
The HEDP rounds are designed with a small shaped-charge that forms a jet at the point of contact, capable of punching a hole into the vehicle. The warhead also has a fragmentation layer that is capable of causing casualties out to 5m, similar to a hand grenade.
WilsonPL wrote:
It can also punch through two inches ( 5 cm) of rolled homogeneous armor with a direct hit (0 Degree Obliquity), which means it can penetrate most infantry fighting vehicles and armored personnel carriers.
The catch is that 2 inches is based on a zero-degree impact. And in life, that rarely happens. You're probably looking more like 30 degrees impact, which will produce much less penetration.
So even though chances of having a full penetration of an APC are unlikely, it's still going to be quite effective against them. There is chance of damaging or destroying external components. It's going to scare the shit out of the crew, who might panic or at least divert from their previous activity. This is going to reduce the combat effectiveness of the vehicle, and in many cases cause it to retreat. So even without a catastrophic hit, a Mk 19 can still disable an APC or cause it to fall back which in the end still serves the same purpose.
Another reason why HEDP rounds would be very effective against an APC is because the fragmentation has a chance of hitting dismounts. So even if the jet-stream is unable to penetrate or damage the APC, there is still chance of the fragments injuring a grunt, thereby taking one weapon out of action.
And believe it or not, but riding on top of an APC might be a little more "comfortable" for the troops in some cases. When traveling over rough terrain, I personally might be a bit nervous about riding on top without being strapped down for fear of being thrown off (has happened before). But not all vehicles have seatbelts inside, or at least not everyone uses them even when they are available. And anyone else here that's been inside of an armored vehicle hauling *** over dirt roads, ditches, logs, etc knows what that feels like. After a couple hours of that you might end up looking like Mike Tyson stomped your *** while you were asleep.