I asked if any of you guys had done something similar
To my eye it has similarities, perhaps not yours. Your feed issues are different, but at the end of the day both are small cap. cases running relatively heavy bullets at subsonic velocity. I'm running a higher sectional density, you have a larger area on the bullet base. Both have influence on the nature of loads that are successful.
Don't know what alloy you're using on the bullets, but it need not be hard. 30:1 works well with what I'm doing, YMMV.
Good luck.
