I loaded 6 sets of two different 9mm bullets with different primers:
1) Everglades Version 2 115gr HP
2) Hornady 115gr XTP
with Small Pistol Magnum, Small Pistol, and Small Rifle primers. All brass was never fired and measured at the trimmed-to size. 5 rounds in each set. All charges were measure-dropped and weighed, then trickled as needed, to the exact desired charge. All were taper crimped after bullet seating.
I did not chrono the loads. I did not perceive any differences in recoil or function with the 3 types of primers other than 2 of the 30 cartridges failed to fire. I did not think to check if the bullets differed.
When I examined them, the primer strike was at the outside edge of the primer and obviously a light strike. I chambered each by hand, and both fired upon the second try.
What might have caused the misplaced primer strike?
1) Everglades Version 2 115gr HP
2) Hornady 115gr XTP
with Small Pistol Magnum, Small Pistol, and Small Rifle primers. All brass was never fired and measured at the trimmed-to size. 5 rounds in each set. All charges were measure-dropped and weighed, then trickled as needed, to the exact desired charge. All were taper crimped after bullet seating.
I did not chrono the loads. I did not perceive any differences in recoil or function with the 3 types of primers other than 2 of the 30 cartridges failed to fire. I did not think to check if the bullets differed.
When I examined them, the primer strike was at the outside edge of the primer and obviously a light strike. I chambered each by hand, and both fired upon the second try.
What might have caused the misplaced primer strike?