When Update 65 dropped most weapon animations were updated to be more modern looking, included in this were the pistol animations that closely resemble what they are currently in-game. The difference being is these reloads appear more expressive and less "generic" looking at least to me.

To my knowledge this only effects the Interceptor .45, Crosskill, Signature .40 & LEO Pistol, since they all share the same animations.

If you're confused at what's exactly changed, check my video here.