I thought it also reduced spread for all weapons?
Question: Does reduced spread tranlate into lower VATS percentages? If it does, then the answer is no. I went to the test range, loaded some weapons and toggled perception from 1 to 10 (and eventually 100 for [censored] and grins) to see if there was any change in VATS to-hit percentages. The test range is a very controlled environment, the targets *can not* move, so you can stand there and get the same VATS results time after time. I observed no change at all in VATS to-hit percentages no matter the perception.
If if does reduce spread, but not VATS to-hit percentages, then I could take a fairly crappy spread weapon and toggle perception up and down to see if I can actually hit something, but the experiment won't exactly be SCIENTIFIC!. Unless I record hit percentages over a fairly large sample size, it's not gonna mean much.
-Gunny out.