All the 28 gauge crimp tool did for me was ruin hulls. I load for the 32 gauge with a folded star crimp. It is easy to convert a MEC 600 and perform all operations on the press. It's easy and much faster than roll crimping either by hand or on a drill press.
It is interesting that your chambers are 70mm. My gun is also modern (made in the 70's) and it has 65mm chambers. I have never seen a 32 gauge shell that was longer than 65mm.
I am interested in more load data but I want loads that have a known velocity and pressure. I currently only have a handful.
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