Performance change with current Retumbo

[Greyfox]

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?

 

[Broz]

Yes the newer lots of both H1000 and retumbo are said to be hotter by a significant amount. Hodgdens needs to work on this. It is poor quality control. I combat this by buying large amounts of the same lot. Last order was 40 lbs of H-1000

Jeff

 

[flashhole]

I use Retumbo in my 25-06 and 7mm Rem Mag. I will keep this in mind but I've always had good repeatability with Retumbo over the years. It would be nice if Hodgdon came out with a Super Short Cut version of Retumbo.