I was somewhat surprised one by the velocity of the bullet and also by the consistency, but I developed a method for throwing the powder that I work at very hard. I also trust my volume measure a lot for it being consistent IF I do may part. But then again the weight of the bullet helps with the consistency in that it is heavy enough that a larger discrepancy in volume is needed to see the difference.

The Sub-Base is basically the skirt of the sabot with a dome top... I actually think the dome top is important in accuracy - I can not prove that but I feel it. I have used shot cards and wads in the past and I really feel these come off cleaner, retain more pressure and aid in accuracy because they come off the bullet so easy.

This is a picture of the Sub-Bases...