Here's what I found out from Phil. Yes '71 was the 1st in a 2 set. The 1 I bought in '84 was a 2nd edition that was published in '78. The 3rd , not for sure I didn't find out. The 4th was in '95. The 1st was in limited calibers. The 5th was '03 or '06. I thought the 1 I bought in '84 was the 5th, but no! The 6th was '19. Even though it states as '47 was the beginning, it actually was '45 2 years before they manufactured bullets which was '47. The rest is history! This is as close as I can get or remember from 3 hours ago!