Don't know what the problem is.. I used the 250g SST this fall to take 2 mulie does, shot the first one, reloaded and shot the second one. I had no problem at all seating the sabot.
I am using 777 loose powder too, so things are similar. My bore might be slightly larger is all I can think of.
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Member - AOPA - Lloydminster & Area Archery Assoc. - Life Member NAHC - IBEP Instructor
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