cayugad,
The 200grn Shockwaves are accurate in most Muzzleloaders. I actually have shot a few Deer with them as well. They worked just fine for me. I actually prefered the 220grn DeadCenter over the ShockWaves. They imo did a better job on game.

Those 250grn Lehigh's dont need the speed to shoot. It's the 200grn bullets in 50calibers that need pushed to stabilize.

Great shooting with all bullets and loads.