02-19-2022, 07:38 AM
Yeah I personally think the use of a 6.8 diameter is to satisfy some whim of a DoD manager... no bone either with it only that, as 55 points out, an increase in SD for the narrower caliber is an advantage -- ergo a 6.5 would be even better. 2 other things leap out to me and they are
1) correct in stating that angle of attack, bullet path to plate, makes for an apparent "thicker" plate when the bullet is not perpendicular in flight to the plate. So even if it penetrates head-on in your test, in a fire fight wouldn't be as effective since you can't guarantee what angle of strike your bullet will have when it hits... and if there's more yaw at the end of 600m, well that's another factor hindering performance.
2) your experiences for penetrating effectiveness were at 25 m, and even there they basically failed, yet somehow a bullet after 600 m of flight, will succeed. Guess I could crunch some numbers (at 2 AM who's kidding who??) but doubt if that pill at 600 m would always exceed current ammo ke and momentum at 25.
Agree the one benefit of this is stirring up some tech innovation, but I would bet that you'd get more positive penetration (and at virtually any distance where the bullet had some ke left) in inventing a bullet with an explosive tip that wouldn't go off until it hits (here's the tech, inert until something like 0.1 sec after muzzle exit). Being a personal-efp style projectile would take some tech for sure, and could be a clip of same you could insert when needed but keep mostly normal ammo in your pack. It's not every day you face someone at 600 m, and wearing armor at that. I would think that most armor you would see, would be bad guys that were more up close and personal... just my 2 cents.
I'd rather call in some 155 "penetrators" for that 600m bunch of guys anyway
. Or invent a squad level man-pad rocket you could carry and pull out when needed that could work off your laser-guide helmet head's up-seeing-thingy. Maybe even invent a small robot-mule that goes with the squad and carries that stuff (an armed "r2d2" companion) - off loadable if it breaks down.
...We need some DOD guys to pay us money to work on these ideas!!!
1) correct in stating that angle of attack, bullet path to plate, makes for an apparent "thicker" plate when the bullet is not perpendicular in flight to the plate. So even if it penetrates head-on in your test, in a fire fight wouldn't be as effective since you can't guarantee what angle of strike your bullet will have when it hits... and if there's more yaw at the end of 600m, well that's another factor hindering performance.
2) your experiences for penetrating effectiveness were at 25 m, and even there they basically failed, yet somehow a bullet after 600 m of flight, will succeed. Guess I could crunch some numbers (at 2 AM who's kidding who??) but doubt if that pill at 600 m would always exceed current ammo ke and momentum at 25.
Agree the one benefit of this is stirring up some tech innovation, but I would bet that you'd get more positive penetration (and at virtually any distance where the bullet had some ke left) in inventing a bullet with an explosive tip that wouldn't go off until it hits (here's the tech, inert until something like 0.1 sec after muzzle exit). Being a personal-efp style projectile would take some tech for sure, and could be a clip of same you could insert when needed but keep mostly normal ammo in your pack. It's not every day you face someone at 600 m, and wearing armor at that. I would think that most armor you would see, would be bad guys that were more up close and personal... just my 2 cents.
I'd rather call in some 155 "penetrators" for that 600m bunch of guys anyway
. Or invent a squad level man-pad rocket you could carry and pull out when needed that could work off your laser-guide helmet head's up-seeing-thingy. Maybe even invent a small robot-mule that goes with the squad and carries that stuff (an armed "r2d2" companion) - off loadable if it breaks down....We need some DOD guys to pay us money to work on these ideas!!!
"Down the floor, out the door, Go Brandon Go!!!!!"