I finally was able to get out and shoot the super old can of Pyrodex RS VS a fresh can of Pyrodex RS. I started with accuracy test first since that's a lot more fun than shooting over the Chrony.
70gr Volume
.020" patches
.490" round balls
Buckskinners patch lube
50 yard distance.
6 O'clock hole is 3 shots with the NEW can of RS and the 12 O'clock group is with the old RS. I used 2 different aiming points to prevent the shots from running together.
The new can shot quite a bit tighter, but I think that's due to be being able to get a precise POI on the bulls eye where as with the 12 o'clock hold, My bulls eye was covered up. Both shot flawless, but I did notice a big difference when seating the ball.
The old RS is super strong and will not compress. The new RS seems crumbly and easily compresses. I will be taking a picture of both pictures side by side. The old stuff seems like it was a coating on it.