Quote:
Originally Posted by Sashi
I am presently having a similar problem with my m96. I will be turfing my old brass, as the bases are already expanded. Starting with new brass I'll be loading from minimum and increasing 1gr at a time till I see high pressure signs, and recording the velocities. This info will be sent to one of the powder manufactures technicians (who I have been in contact with). He is also concerned as I was blowing primers a couple of grains below their published maximums.
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I may have resolved my problem, The actual velocities verses the expected velocities were normal, But the soot covering the cases was from ruptured primers due to a nick in the firing pin. Hopefully the cause of the base expansions was caused by the hot gases flowing backwards and heating the base. This along with the pressures causing the bases to expand. My new firing pin should be in soon, and I will be able prove my assumptions.
