Jager:
Thanks for attempting to assist me in the cost, but I prefer Damascus tubes(they are a work of art) and most are 65mm and short forcing cones. Using 70mm in a 65mm chamber, even though the pressure of most intended is within the range, could result in a rogue Baby Mag or Polymag being dropped in the chamber and ignited to dire conseqences. I do shoot RST and others but Polywad's flats are a box of loose which you can take to the field, open up and empty(also put hulls in box). No other trash of boxtops and the like. Tread lightly and left little evidence, such as a footprint or broken cotton stalk, that you were there. The more powder charge you put behind a shot charge, the longer the shot string. The Polywad shotshells burn a little dirty and may suffer in fringe area but in my case, they perform well when you are on target. For the cost of an additional box, one could have the SpredR(?) load which is supposed to aide in the fringe area. I had purchased several cases when they were cheaper and from gunshops whose clients didn't like loose shotshells and the flats were around $85. Some were more with shipping. On your millisecond time, are you measuring group velocity or an average velocity along the shotstring?
Thanks & Kind Regards,
Raimey
rse
