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Post by rangeball on Jan 12, 2009 15:30:33 GMT -5
Just curious what your thoughts are on the leading causes of blown sabots. Powder burn too hot? Too much pressure? Too small a bullet diameter for a given sabot, like .50 sabot and .40 bullet? Is the sabot base too thin for a hotter load and the bullet is punching through at ignition? Is there one main cause, or multiple causes? Thanks
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Post by wilmsmeyer on Jan 12, 2009 17:32:57 GMT -5
I have not shot loads that have blown sabots in a long time. I guess I have forgotten that it's still happening.
The biggest sabot blower I ever had was with straight VV N110. There seemed to be a fine line in charge weight AND outside ambient temperature could change that line. What worked yesterday when it was 30 outside would blow at 60 tomorrow.
Since switching to slower powders...namely H4198...these issues have gone bye-bye. So, to answer your question I would say pressure and how fast it's achieved is the biggest culprit. You do not want to push the "faster" powders too fast. If you want to shoot fast, shoot a slower powder. Does that make sense?
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Post by DW on Jan 12, 2009 19:06:19 GMT -5
I vote multiple. Barrel roughness, pressure, insufficient cooling, and the .40 bullet in a .50 barrel, all would cause sabot stress. IMO
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