Hello, jolasa. I have heard some guys putting wad down on powder, some partway down.. Me? I don't trust that wad slamming into bullet base as a secondary projectile. There have been many cases or chamber ringing & it is not clearly understood just what causes this. I myself have given up on fillers..not wads..they are still used but firmly against bullet base. I was experimenting with an extra light .40 bullet..275gr. in a .40-70 str. (2 1/2") Sharps. Using a light charge of fast burning powder a 1gr. tuft of Kapok was pulled out to resemble a cigar..this was carefully inserted over powder..but in no way compressed..seating the bullet & wad pushed it down into case.
When fired, bullet left bore, but right in front of chamber was this Kapok..now compressed into a .40 wad 3/8" thick. How did this wad end up at the breech end of a 34" long barrel AFTER the bullet left bore? What if next round had run over this wad..It couldn't be very good for the bore!
That was the last time I ever used a filler over smokeless.
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