Mark, I believe you could substitute fiber wads and roll crimp with no problems - the pressures will just go down. In old reloading books they suggested going down 10% of the powder charge when going from fiber to plastic wads. I've loaded with fiber wads and roll crimps instead of plastic and star crimps useing the same powder charge with no problems. It's easier to roll crimp if you cut off the star crimp [ about 1/4" ] - you'll then have a nice 2 1/2" shell. Paul
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