Performance change with current Retumbo
Two different lots of Retumbo I have recently purchased produce higher velocities in my 6.5x284 loads. My original lot a couple of years old, produced 2965 FPS in my 6.5x284. Two recent lots are producing 60FPS higher velocities at 3025 with identical results. To achieve my original velocity of I have to reduce my charge from 59gr to 57.5. After doing this my point of impact, ballistic performance and group size is identical to my original load. I had the exact same effect in my Savage, also a 6.5x284. At 57.5, the load is no longer compressed. Good news is that I can get higher velocities and maintain my accuracy. No pressure signs. Bad news is it's not the same and I wonder if they purposely changed the performance, or just have crappy quality control. Anyone else experience this?
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