Some updates from last weekend's testing. All case mouths were chamfered inside and outside before being run through the mandrel.
- 5 x 5-shot groups with 43gr. 1x fired brass. Brass not cleaned. Average ES is 20 which is a significant improvement from the usual 25-30 average ES of fire formed brass. Highest ES is 33 the rest was 22 and below. As mentioned before, I typically could only get an average ES of 20 with virgin brass.
- 9 x 5-shot groups with 41.8 gr. Virgin brass. Average ES is 21 which is slightly worse than usual. I used to load at 41.8 gr but I moved to 43 gr hoping to get rid of these groups with high ES/SD.
- 5 x 5-shot groups with 43gr. 1x fired brass. Brass not cleaned. Average ES is 20 which is a significant improvement from the usual 25-30 average ES of fire formed brass. Highest ES is 33 the rest was 22 and below. As mentioned before, I typically could only get an average ES of 20 with virgin brass.
- 9 x 5-shot groups with 41.8 gr. Virgin brass. Average ES is 21 which is slightly worse than usual. I used to load at 41.8 gr but I moved to 43 gr hoping to get rid of these groups with high ES/SD.