breech seating bore diameter pp

[bruce moulds]

ammo is loaded to try 800 metres tomorrow, weather permitting.
the old lot of swiss 1f that loads were developed with ran out. cases held 90 gns, while the new lot is only 85 gns, as is swiss 1.5.
am going to try the 1.5, due to potential velocity loss with the new 1.0.
the wads are now held in with a light crimp, so new experiments are always ongoing.
probably bigger wads would be a simpler solution.
keep safe,
bruce.