I know that you have been probably been flooded with prompts to write and let your comments be known about the proposed ban and even been supplied with templates. If you haven't already I would urge you to do so. I have included what I sent to the ATFE via email. Perhaps you will find it useful or informational, feel free to use it however you like -  a few people have asked me "what's the deal with green tip?"

To: This email address is being protected from spambots. You need JavaScript enabled to view it.

Dear Sir/Madam,
I am writing to make it known that I am against the proposed ban. I will be brief.
1. M855 makes up ~ 30% of the civilian sporting market for 223.
2. M855 is not mostly made made up of an offending "piercing" metal
3. M855 has always been exempt from the 1986 requirements
4. Handguns firing rifle rounds (including M855) have long been available and are prohibitively expensive
5. ATFE makes no claim nor presents any statistics that there are actually instances of M855 being used in crime, especially from a handgun
6. The round, ironically, is actually ballistically less of a threat when fired from a handgun
7. The "framework" is too loosely defined, it appears as if the goal is to be able to restrict all .223 based ammunition with the exception of rimfire. The accelerated timeframe for adoption does not help this perception
8. The 223 round is probably the most popular sporting round currently in use by the public, surpassing even 22 rimfire since 223 (up until this proposal) it has been more available

Thank you for your time, and I hope that you reconsider this proposal.