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6/18/2025, 3:14:12 PM
>>63856265
>>63856484
Having a channel cutted out doesn't mean it won't engage the rifling. In fact a drill bit create and engage its own threading with disconnected bearing surface so shavings can leave.
In triangular boat tail, the channel is only half way through and sealing surface is like saw tooth on one side and straight flat line surrounding the cyclinder.
One can go to the extreme of more aggressive of replacing the ogive flatline with another sawtooth so that the sealing is a thin sawtooth wave. Half in the ogive and half in the boat tail.
>>63856484
Having a channel cutted out doesn't mean it won't engage the rifling. In fact a drill bit create and engage its own threading with disconnected bearing surface so shavings can leave.
In triangular boat tail, the channel is only half way through and sealing surface is like saw tooth on one side and straight flat line surrounding the cyclinder.
One can go to the extreme of more aggressive of replacing the ogive flatline with another sawtooth so that the sealing is a thin sawtooth wave. Half in the ogive and half in the boat tail.
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