I just read it and I have an idea of what it is talking about. The key is "some rifle bullets" in the article. It explains bullets tumbling at extended distances. Snipers and tarket shooters get around this by shooting longer hevier bullets.
Either the article is ignorant of handgunners or ???, but it dosnt talk about us. At the ranges most of us shoot it isnt even a problem with our SP's.
IMHO, Keith practiced quite a bit with his revolvers at extended distances out to 600 yards. I guess that big ol hunk of lead did all right...
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Democracy is two wolves and a lamb deciding what to have for dinner. Liberty is a well armed lamb
Benjamin Franklin