Note: for all autos, 1.6.8 gave 129,4% damage for hitting hs over feet, but in gather wm it's only 125%
Overall: Damage decreased by 11%, reload times have increased significantly. Majority of decrease in accuracy of the guns happened before 1.6.8 (probably around 1.6.4-1.6.5)

DE:
damage: 88.9%

Mp5:
damage: 91%
push: 112%

AK-74:
damage: 82.3%
rate of fire: 110%
reload: 103,3%
ammo: 87.5%
accuracy: more or less the same, but can no longer shoot for a longer duration, loses even more dps now.


Steyr:
dmg 90.5%
reload: 120%
ammo: 120%
accuracy: more or less the same, slightly less accurate
push: 107.1%

Spas:
damage: 93.9%

Ruger-77:
damage: 93.8% (note 1.6.8 gave 20% more for hs than leg shot, gather wm gives only 10% more dmg)
rate of fire: 76.5%
reload: 107.4%
accuracy: about same, slight decrease

M79:
same

Barret:
damage: ~91.4% (does not matter)
rate of fire: 107.1%
reload: 357.1%
movement acc: about same, slight increase

FN Minimi:
damage: 91.4%
reload: 96%
accuracy: about the same, slightly more accurate overall

Minigun:
Different weapon, can't compare

Ussocom:
damage: 91.4%
ammo: 116.7%

reload: 138.5%

Chainsaw:
no longer infinite ammo.

1.6.4 -> 1.6.8
AK spread: 2 -> 9
Steyr spread: 1 -> 7
FN minimi spread: 1 -> 6
583,3% more bulletspread.