I am priming by hand my .45 cal. range brass and in the last few days I have been finding Federal rounds with NT stamped on the top of the brass. The first thing I noticed was the primer hole is substantially smaller than other brass. I THINK I measured the primer hole @.177, although I could be a tad off. I did some research and found out that the NT meant non toxic and Winchester also made some NT for .45 and 9mm. After reading some material, it said that you can reload these rounds using smaller primers. Had I been using my progressive loader I might not have noticed this. Also found a thread that stated brass marked AMERC is junk brass and not to be reloaded due to casing sides being too thin. I tossed my NT rounds in the junk bin and won't use them. I am wondering if anyone else has noticed this before. The NT primer pockets are almost .020 smaller than other brass. Would appreciate any comments on this. Thanks!!! Tommy P.S. I might be wrong but as I understand it, my dim witted mind, that these smaller primer pocket brass were used on rounds that had no lead in them. Ca now has a law that you can't hunt with leaded bullets. Anybody up on this?