Most revolvers don’t load rifle rounds, and I’m one of the folks who has trouble keeping the various 7.62 ammo straight. Therefore I don’t expect players to come to DDA knowing that .223 and 5.56 are similar enough to load into the same gun (I know, IRL it’s a little more dangerous than that, pressure and all).
In-world, the L2037 was intended to be used together with the L523 series, and generally “revolver” translates to “six-shooter” so varying from that feels like it warrants an explanation.
If you’ve got a better blurb or something you think should be added, let’s hear it.