I just found a .45GAP box from Remington marked as L45GAP7 - 230gr JHP. I had no idea this existed, and I had been scouring online quite a bit last year when I did my journal article on this caliber. I knew of the L45GAP4 - FMJ ammo, which is relatively common, but this JHP caught me by surprise. Searching online I find a few random hits, but nothing comes up under an image search for this type. Was this a very short production run done for a limited time?
Some photos, better ones will follow when I get the box from the seller: