Check the Alliant website. They have published loads using Pro Reach. 17 grains,cb-5034 wad and a Cheddite primer in a Winchester HS hull. 1300 fps @8640 PSI. I emailed Alliant and they said the load could also be used in the older compression hulls by changing the wad to the original style for straight hulls. They also list loads for all the other hulls. I've had very good luck with this load, crimps good and doesn't seem to burn out the hulls as quick as 20/28 does.
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