Elsewhere (cast Boolits comes to mind), a fellow bought 200 brand new Starline 30-30 cases, he took a very long time and made 100 perfect, same length, weight, etc. He cast several hundred Boolits, and collected 100 that matched and 100 random unblemished ones. He pretty much loaded the first 100 INDIVIDUALLY. Then the random 100 on his press.

He shot them at 200 or so yards.

Those he took extra care with were more accurate.

You could cover a three shot group with a quarter. On the random loads you could cover three shots with a Kennedy or Eisenhower coin.

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Certified Curmudgeon