He wanted me to ask what the best gun he can get for around $500. Also he wants to know how the recoil is on the lighter rounds.
Are we still talking .44 Magnums? If so, I think that the Ruger Super Redhawk would be your best deal for around 500 bones. On lighter .44 Special rounds, the recoil is substantially less than magnum rounds. Less even than the .357 rounds he has likely been shooting.
If he's considering other calibers, have him look at a .45ACP semi-automatic. Visit Ruger's website and check out the P97. Low recoil compared to the .44 Magnum, and factory ammo is a LOT cheaper. I think I paid $330 for mine, so they are a lot less pricey than the .44