Years ago in the late 1980's, I loaded 20,000 rounds of 223. It was on a Dillion 450 that had manual index, manual primer feed, and manual powder drop. The choice of componets is important, on that batch WW748 powder was used. I still have about 6,000 rounds left and tested them a few years ago. They were origanally loaded to use in a Mini 14 and the best groups that gun (Stainless) ever produced was about 5" at 100yards with scope. when I tested them for accuracy I used a Cooper 21 on a rest with a Leo. 6.5x20 veri-X III scope. At 100 yards it put 3 shots in the same hole, not once but 5 times for me and between 2 other shooters 5 more times at the same setting. Yes a progressive can produce real good ammo. However, nowdays I'm shooting long range 308 out to 1000 yards, the powder I'm using is Varget and I can't get it to drop comsistantly from any of 4 different powder measures, so I weigh each load. Years ago I had a 147gr FMJ load with 748 that I loaded on the Dillion (upgraded with auto primer feed and casemouth activated powder drop), they were better than most ammo I coud buy(except 1973 Isreal 147 fmj, this stuff shot better than any match ammo I ever bought). Now days there is some real good 308 on the market- Hornady 168 TAP is real, real good out to 1000. But by the Case was $1.35 a round! So I'm loading 308 on a T-7 turrit and weighing the charges. If I was only shooting 600 yards or less It would be progressive a ball powder (ww748, H335, H322, or Benchmark) all the way!!! Ivan