Reticle size doesn't change in SP?

Apr 16, 2019
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I thought the reticle size wasn't doing anything at all so I registered and started a local MP game and it works fine there. Is there any way to get the reticles smaller (preferably to whatever values the "small" preset uses) in SP or is it just stuck with gigantic reticles designed for 480p?

I've tried looking for other posts n' such but everything comes up with the crosshair offset, which works fine in SP. Any help or acknowledgement of whether this is possible or not would be appreciated.