I know I might receive criticism for this following comment, but if you want to see examples of reload animations done correctly, look at Battlefield 3. The game itself is immensely unrealistic, and I'm not at all suggesting to model the game or the gameplay to that game, but as a firearm expert, I can tell you that the one thing they did not drop the ball on was their weapon animations. I can tell they hired someone VERY familiar with weapons to do the animations because they use some advanced reload methods that even a lot of experienced shooters are unaware of. A few good examples would be loading a shotgun shell directly through the ejection port to chamber the first shell before loading additional shells into the tubular magazine, and using a new magazine to engage the magazine release in the AK47 while knocking out the old magazine all in one motion, then inserting the new magazine. Another good example is using only the support hand to reload all weapons, even weapons with charging handles on the right side, this is done by tilting the weapon to the side and reaching over with the support hand to charge the weapon.