I have a 20 inch Remington 870 Police Magnum and I have shot hundreds of rounds of Wolf 00 Buckshot. While its reliable, it doesn't pattern worth a shit. Its the worst patterning buckshot I have ever shot. At 25 feet, the pattern is abhorent. Federal LE, Remington, Winchester and Hornady all pattern extremely well in my gun. I use Wolf 00 buckshot only for practice/training.
For any type of hunting/defensive use, I have found it to be unsuitible. I noticed Wolf 00 buckshot has alot of "fliers". While it patterns poorly, especially when compared to Federal, it is still a pattern. 1 or 2 pieces of shot will fly a considerable distance outside the "pattern". Federal 00 buck and Winchester 00 buck isn't much more expensive but patterns much better. Winchester 00buckshot is 6.50 for 15 rounds at WalMart. Wolf isn't that much cheaper, and even it it was, I would much spend a buck more to have around that is cheap enough to practice with buit suitible for defense. While its true that some shotguns prefer some loads to others and every gun will pattern differently, I have never seen Wolf pattern well out of any shotgun. Its not intened to be LE duty ammo, but afforidble blasting fodder. If you can get a good deal on it, buy some just for practice. For training, its certainly suitible but for anything else, its garbage. I have never found it for less than 1.60 a box, and thats the same price as I can get Winchester/Speer/Federal so I don't even mess with it. Sellier and Belliot is slightly better, but still marginal....its a damn long 2 3/4 inch shell. This would also be a good practice round.