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Old April 18, 2009, 04:51 PM   #1
tpcollins
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Join Date: February 18, 2009
Location: SE Michigan
Posts: 558
How much oversize should a sabot be?

The specs for my MK85 .50 cal is suppose to be .504 bore, grooves .005" - .006" deep. I honed the shank of a drill bit on my lathe today and .501" fits into the muzzle where .5015 wouldn't. This is only 2" into the muzzle so I don't know what the rest of the barrel is. My widest groove to groove is about .512" so the depth spec seems correct.

With a .501 bore diameter, is there a recommended sabot OD amount over the bore diameter that is considered ideal? I measured several of my current sabots and they seem to average consistanly about .5085 and they load fairly easy in a dry bore. Just wondering if this is about right or if I should strive for something better? They shoot fine, I'm just tweaking things a bit. Thanks.
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