Sharp Shooter,

The round balls look good, how tall is the 425?

The first time I stood on the garage roof and shot down into a garge can full of water, I found out that you cannot get out of the way of the stream of water that funels upward.......a thin pc of card board stopped the water.......the next time. Testing bullets is fun.

Sand is easy to use, how much penetration were you getting?

I did a test with chip board earlier this year:
http://webpages.charter.net/fam-strick/web/Test.htm

The faster 54 RB just flatened and penatrated less than the slower one.

My buddie found that 3F worked better in his Renagade with Round balls, tha 2F........go figure. He uses 120 grains, and has killed 4 or 5 elk with this load. Not sure of the ball or patch size. All his shots were in the 40-60 yard range.