Centurion slugs and .650 ball rounds

[RK808]

Does anyone have any experience with these rounds before? They're really well priced and I really don't see how this ammo could be bad in a pump shotgun.

http://www.sgammo.com/product/centurion/50rds-12-gauge-centurion-2-x-650-round-ball-275-inch-1200-fps

http://www.sgammo.com/product/centurion/50rds-12-gauge-centurion-1-18-oz-slug-275-inch-1400-fps

[11011500a]

http://www.calguns.net/calgunforum/showthread.php?t=371288&highlight=Slugs

For the money I like the slugs. The X2 were more of a novelty I just bought fifty rounds of them to see what they were like.