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It may be that Ackley was a little bit "too" right about minimum-taper cases.
Because they do grip the chamber walls better, reloaders run the pressures up way past the safe limits before they see any warning signs. Then they report "I get hundreds of extra feet per second with no pressure signs!"
The problem is that the "no signs" doesn't mean the pressure isn't excessive. But you don't know it until your rifle gets loose - or worse.
Whether to "Ackley" a round or not may come down to the rifle itself. In very strong actions, it might be fine, within limits. But in guns designed for traditional low-pressure cartridges (the Win 94 and Marlin 336 included), it might be smarter to leave them alone.
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