Looking to vet this out.. I just sent an action to Hart for rebarrelling and I'd like to minimize load development time. Since the chamber will be new, I will not have any fire formed cases yet so all cases initially will be new or full lengthed sized. My approach is the following:
- start with 24 cases, 12 new, 12 previously loaded (common head stamped, weight is the same, proper prep (cleaned, trimmed, polished, reamed, deburred..)
- load ea with the same bullet/powder mix
- seat bullets in 4 groups of 3 at varying distances from rifling (found distance recommendations on this forum)
- 2 sets of these loadings, 1 with previous loaded brass and 1 with new
- identify the groupings that show most promise
- use fire formed brass to determine proper sizing die adjustments
- move on to varying powder loads
Questions are:
I recognize that fl sizing likely will not produce the best groups, but will the groups with varying seating depths be indicative of performance when the cases are sized correctly ?
Is there something I should be requesting of Hart that will aide in load development or ensure the best results?
- start with 24 cases, 12 new, 12 previously loaded (common head stamped, weight is the same, proper prep (cleaned, trimmed, polished, reamed, deburred..)
- load ea with the same bullet/powder mix
- seat bullets in 4 groups of 3 at varying distances from rifling (found distance recommendations on this forum)
- 2 sets of these loadings, 1 with previous loaded brass and 1 with new
- identify the groupings that show most promise
- use fire formed brass to determine proper sizing die adjustments
- move on to varying powder loads
Questions are:
I recognize that fl sizing likely will not produce the best groups, but will the groups with varying seating depths be indicative of performance when the cases are sized correctly ?
Is there something I should be requesting of Hart that will aide in load development or ensure the best results?