Bioval BB's are the best bb's (bio or not) I've ever used. I can tell no difference, in terms of accuracy or range, between these and the Excel .25g bb's and they are actually better than the KSC .25 pefects.

Never had this happen to me... Have you had this happen before or are you just saying what you've "heard" from others?

Heres some info on the true biodegradable properties of bioval bb's. Its a little old but still seems relevant.
http://www.arniesairsoft.co.uk/?filn.../bio_tests.htm

Shinobii from mach1airsoft is now an official Bioval distrubuter and has informed me that he will be posting more detailed information on his website later in the week.

Actually Know someone who,s Kraken jammed with BBB do to the BB,s lining his barrel !