i read it in 2 news papers,burlington hawkeye and the quad city times, you should be able to check the archives over the last 2 weeks to read the articles for yorself.

Rifles must 24 cal or larger.
Yes the rifle season is after all other seasons and yes they are antlerless only not doe only (some bucks could have lost their antlers this late in the season.

this goes to the QC times page
http://www.qctimes.net/articles/2005/06/26/sports/doc42be2b2d778ce452932133.txt