Earlier this year I started using Lehigh Defense Xtreme Penetrator 220gr 44 Special for the house revolver (624, 3" LH). On my first order they accidentally sent 220gr 44 Magnum. When I told them of the error, they had me keep the 44 Magnum and sent the correct ammo gratis. Yesterday, my latest order arrived. Same thing, 44 Magnum instead of 44 Special. They are once again sending the correct ammo, no charge. With upstanding character and responsive customer service like that, I hesitate to joke around but, "A free box of Magnum with every Special purchase" would seem to be both an enticing ad campaign and a ruinous business practice.
Check out their videos on their website and on Gunblast. I was impressed by the videos, now I'm sold on the service.