

.308 is expensive.
You want to know what else is expensive? Body armor.
The marines ran into this issue a while back. A lot of causalities were caused by groin shots. The chest armor they were wearing was fine for stopping 7.62, but they’d get tagged in the pelvis and bleed out anyway.
Now the marines have crotch armor too, but that’s also expensive and uncomfortable to wear.
Just a little tidbit.
“You can’t expect the old AC to keep working for 25 years”
Bullshit. A properly installed system will outlive the person that installed, easily. Even 25 years ago, the compressors were made so well that most of them are still electrically and mechanically sound.