So essentially some weapons have odd reload animations sometimes depending on ammo count or nothing at all, British rifles mainly.
So all the Lee Enfield rifles have odd reload animations.
If the rifle rifle has 10 rounds and you have 4 rounds or less in the rifle he shoves 2 clips in, even though the weapon has 4 bullets left.
Same with the 6 round Enfield rifle, at 1 round left and he decides to stick in 5 bullets at a time instead of sticking in a clip, he only uses a clip after all 6 are used.
The G41 also has this issue that after 1 bullet is used no matter what he will put 2 clips in the gun even though 10 bullets won’t fit.
Them being odd ain’t really an issue but from a gameplay perspective it’s sometimes more of an disadvantage.