Does the Hornady data mirror the 40 short & weak data or does it mirror the 10mm Auto data in their manual. I would use 10mm data to load to see if you get the velocity that you want. Also the buckeye special's other cylinder was chambered in 10mm Auto. With the bigger case, should be able to work up to the velocity that you want without excessive pressure.
Last edited by stratton; 03/26/24. Reason: left out stuff
