I can’t see why these rounds would be original to that Franford Arsenal box. (Nice box by the way - haven’t seen one like it before, that I can recall). I am not aware of the use of mixed cases even for practice match, or the use of other people’s cases, by Franford Arsenal. The lot number on the box specifically shows that the cases are of steel - yet one case is brass and made by Winchester and the other appears to be nickeled brass, and commercial, not military, made by Remington.
You don’t need to pull a bullet to closely approximate its weight. Just take a normal .45 FMJ RN round, with its 230 grain bullet, and see if the ones you have are of an overall cartridge weight somewhere around 20 grains less than the normal ball. The weight difference could probably span from about 18 grains to around 22 or 23 grains difference due to case material and powder charge differences. If they are within about 5 to 8 grains different overall cartridge weight, I would say these bullets are 230 grains.
It is common practice for shooters to mark their brass in various ways so they get their own brass back. I used a red stripe across my own .45 auto brass (no, these are not my reloads - ha! Ha! I used only 200 grain Hensley and Gibbs 68 SWC Lead bullets) when I was a bullseye pistol shooter. My current buddy in cowboy action shooting uses a red stripe across the base on his .45 Long Colt brass.
I will admit I am only guessing here, but if the primers on these rounds are all the same, and nickeled cup, I would guess they are reloads, and that how they got into such an exotic box is a mystery. I can’t really tell from the photos, due to the red stripe, if they are all nickel, which would not be the norm for the FA case, but they appear to be looking at the edges peeking out from below the red.