Can we please NOT mixup stuff? Antilag in 2.4.2 was broken by movement interpolation at the wrong time, thats a known fact and is very likely the cause for your misses during that test! Antilag in svn (upcoming version) IS fixed. And just to make sure antilag is run SERVER-SIDE so, for a good test you would need a current svn server.
Now lets please get back to the topic which is the 'new antilagged hitscan-ballistic bullets in current svn' (due to popular demand now the default). Which means that the bullets still do a curve due to gravity but still are hitscan and thus can be antilagged and should give people the familar feeling they have about those guns.. So please forget everything you tested about the SG/MG/CR the last few days and TRY AGAIN on a CURRENT svn server. To make sure you are on a current svn server try lazy dog or the planetnexuiz.de server which also collect weapon stats!
If you play on an other server you risk not knowing which exact version they run and that might very well give you a bad idea about the 'current' guns!